Acres infestation soybean aphid. Medical search. Frequent questions

MISSISSIPPI STATE -- Crops almost never go from potentially record yields one year to drastic acre reductions the next, but catastrophic aphid infestations coupled with low prices may force grain sorghum growers into that situation. (msucares.com)
Erick Larson, grain crops specialist with the Mississippi State University Extension Service, said if not for the white sugarcane aphid, the state would have one of the largest grain sorghum crops in recent history. (msucares.com)
The Environmental Protection Agency granted growers an emergency exemption for two applications of Transform, which has been used in the past to control aphids in other crops. (msucares.com)
Reports of suspected dicamba injury to soybean and other sensitive crops are increasing. (unl.edu)
Sorghum is a perennial plant, so it will not naturally senesce after physiological maturity like annual crops, such as wheat, corn, and soybean. (mississippi-crops.com)
Torrential rains and resulting flooding have destroyed as much as 5 percent of Indiana's corn and soybean crops and potentially have caused about $300 million in crop damage since the beginning of June, Purdue Extension economist Chris Hurt said Friday (June 26). (countrypartnerscoop.com)
The best sowing of the Soybean crops in different zones of Punjab is from 15th July to 20th August for optimum grain production. (gov.pk)
Soybean is better adapted to soil types with a lower pH than other legume crops, but a pH lower than 5 obstructs nitrogen fixation. (gov.pk)
Corn is a superior rotational crop for peanuts, tobacco, cotton, soybeans, vegetables and other crops and, therefore it can be an important part of an integrated pest management program for all crops on a farm. (ncsu.edu)
No-tillage soybean performance in cover crops for weed management in the western Corn Belt. (geometry.net)
A sequential rationality test of USDA preliminary price estimates for selected program crops: rice, soybeans, and wheat. (geometry.net)
2Plants Brazil debates farmers planting modified soybean crops Roberto Rodrigues, in favor of allowing gene-modified soybean crops. (geometry.net)
Can anyone tell me what proportion of the world s soybean crops are now genetically engineered? (geometry.net)
GENTECH archive [Index] [Thread] Can anyone tell me what proportion of the world's soybean crops are now genetically engineered? (geometry.net)
Illinois corn and soybean crops faring well. (geometry.net)

Catchot said numerous beneficial insects, such as ladybugs and syrphid fly larvae, will feast on the aphids, but, populations eventually explode and beneficial insects cannot keep up. (msucares.com)
The current economic threshold for soybean aphids is 250 aphids per plant with 80% of the plant infested and populations increasing. (unl.edu)
The economic threshold for late vegetative through R5 stage soybeans is 250 aphids per plant with 80% of the plants infested and populations increasing. (unl.edu)
Failures of certain pyrethroid insecticides for management of some soybean aphid populations have been observed in commercial fields, and resistance to bifenthrin and lambda-cyhalothrin has been documented through small-plot research and laboratory bioassays. (no-tillfarmer.com)
Because of the mobility of winged soybean aphids, the challenges posed by insecticide-resistant populations of the pest could spread to soybean fields in other parts of the region. (no-tillfarmer.com)
Insecticide seed treatments are not a viable answer to managing insecticide resistant aphid populations. (no-tillfarmer.com)
Aphid populations during the fall are typically higher in early planted wheat. (farmprogress.com)
This observation typically holds true holds until late February or March when the wheat and aphid populations begin to grow. (farmprogress.com)
A seed treatment or foliar application of insecticide in the fall and spring may be necessary for wheat that is planted too early … or if aphid populations get an unusually early start. (farmprogress.com)
Although aphid populations are increasing in some areas of western and southern Minnesota, many areas still have low populations. (agfax.com)
Soybean aphids have always been around Ohio, but it has been a while since we have had many fields with high populations. (agfax.com)
Drought conditions increase the movement of spider mite populations to soybean because the original host plants dry down or are harvested (in the case of alfalfa) and drought conditions improve the quality of soybean as a food source for the mite-- it reduces the natural occurring fungal pathogen that attacks the mite, and it allows twospotted mite reproduction out pace its predators. (krugerseed.com)
When treating plant bugs also consider aphid populations. (uga.edu)
Other types of ants will nurse and herd aphid populations in order to feed off their sweet excretions: like a bug-sized dairy farm! (phytotheca.com)

Farmers saw few soybean insects during a cool and wet 2015 growing season. (farmprogress.com)
Download the 2016 Soybean outlook: Diseases and insects in .PDF format. (farmprogress.com)
Pre emerge herbicide applications also give us the opportunity to scout for insects like soybean aphids and spider mites ahead of the second pass and tank mix an insecticide to eliminate these critters. (unitedcooperative.com)
Early season insects can feed on soybean seeds and seedlings causing plant injury, stunting, delayed emergence, or stand loss. (goldcountryseed.com)
Soybean aphids are very small (less than 1/16 inch long), soft-bodied, pear-shaped insects (Figure 6). (goldcountryseed.com)
Treatment recommendations and action thresholds for early season soybean insects. (goldcountryseed.com)
Transform is the most consistent performer on both plant bugs and aphids and is relatively "soft" on beneficial insects. (uga.edu)
Treatment includes removal by hand, spraying leaves with water to dislodge aphids, releasing beneficial insects that feed on aphids, or the use of sprays containing neem oil or insecticide soap/detergent. (phytotheca.com)

Early season injury to soybean is caused by the overwintered adults feeding on cotyledons, leaves, and stems. (goldcountryseed.com)
Twospotted spider mite injury to soybean leaf. (krugerseed.com)

Soybean pests are feeling the wind beneath their wings as they are sucked into the latest research project to monitor seasonal data on migratory flight patterns. (agfax.com)
It also degrades wildlife habitats and serves as a host to other pests like soybean aphids and crown rust fungus. (steigerwaldt.com)

Growers planted the 2014 crop a little later this year because of the wet planting season, and some of the later planted fields are even more vulnerable to aphid damage. (msucares.com)
Larson said growers will likely consider a recurrence of aphids too risky next year to attempt growing much, if any, grain sorghum, which is already a relatively minor crop in the state. (msucares.com)
Grain sorghum is a niche crop that complements soybeans because of its drought tolerance," Larson said. (msucares.com)
View the new label rates for corn and soybean with a cumulative maximum per year of 87 fl oz/acre for either crop. (unl.edu)
This can be prevented with the use of a pre emergent herbicide application that has an upfront investment of 1 to 1.5 bushels per acre, and will typically help keep a soybean crop clean through the late vegetative stages or early reproductive stages. (unitedcooperative.com)
Michael Langemeier, an agricultural economist specializing in crop systems, said about 80 percent of the state's corn and soybean acreage was covered by crop insurance. (countrypartnerscoop.com)
True white grubs and masked chafer grubs can damage soybean seedlings, especially when the soybean crop follows sod or another cover crop. (goldcountryseed.com)
Hot, dry weather at the start of wheat harvest signals spider mite infestations to move into soybeans, dry beans and possibly even the corn crop. (cropwalker.ca)
Soybean rust in state, Mississippi crop still OK. (geometry.net)
Old-crop corn, soybean carryovers set. (geometry.net)
making soybeans a program crop constrains produce acreage. (geometry.net)
Under these conditions, inoculation is recommended for each soybean crop. (geometry.net)

Development of insecticide resistance in this pest creates new challenges for effective soybean pest management and profitable soybean production. (no-tillfarmer.com)
In response to the challenge that insecticide-resistant soybean aphids pose, we encourage growers, consultants and applicators to evaluate their soybean aphid management practices carefully. (no-tillfarmer.com)
Treat fields only when needed to reduce insecticide exposure to soybean aphids. (no-tillfarmer.com)
Tables 1 and 2 list insecticide groups, active ingredients and example trade names of products available for soybean aphid management. (no-tillfarmer.com)
Report suspected cases of insecticide-resistant soybean aphids to a local/regional Extension educator or Extension entomologist. (no-tillfarmer.com)
Until aphid-resistant soybean varieties and other management tactics become more widely available, cost-effective management of soybean aphid will continue to rely on scouting and threshold-based insecticide applications of the few labeled insecticide groups (Table 1) . (no-tillfarmer.com)
Limited number of insecticide groups for soybean aphid management (Table 1) - Management of soybean aphid has relied on foliar applications of only a few insecticide groups, mainly pyrethroids (Group 3A) and organophosphates (Group 1B), for more than 15 years. (no-tillfarmer.com)
Insecticide seed treatments increase yield on average about 3-4 bushels per acre. (farmprogress.com)
A late winter (February) foliar application of insecticide has increased yields in my tests by an average of 8.4 bushels per acre. (farmprogress.com)
Nowlen also suggests using Tamerack® on cotton acres that need help pulling out of phytotoxity from earlier herbicide and insecticide applications. (greenpointag.com)
Soybean aphids can be found in many fields, but we are aware of only one small field where infestations were large enough to require insecticide applications. (agfax.com)
Fungicide expenses totaled $33 per acre, while herbicides cost $34.40 per acre, and insecticide costs were $199.33 per acre. (ufl.edu)
If aphids are present it makes sense to use a plant bug insecticide which also has activity on aphids. (uga.edu)
Insecticide is not effective in controlling eggs of mining larvae and should be used to prevent re-infestation of adult generations. (bayer.ca)

We have been frustrated not to have the research to provide the best advice for growers, but we have never had these aphids in grain sorghum. (msucares.com)
Growers should scout fields sooner than seven-day intervals if aphids have been present at any level. (msucares.com)
While there aren't many bugs in the beans , some growers are on their second pass spraying for plant bugs across their cotton acres. (greenpointag.com)
Growers are strongly advised to continue monitoring soybean fields that remain green and succulent throughout September for the presence of bean leaf beetles. (osu.edu)
Growers are harvesting about 2.9 tons of hay per acre, which is a 10 to 15 percent increase over last year's average," he said. (msstate.edu)
Insecticides available with emergency exemptions are available to control these aphids, but growers need to be sure to observe timing restrictions before harvest. (msstate.edu)

Based on Aug. 1 conditions, yield is expected to average a record 96 bushels per acre, up 2 bushels from 2013. (msucares.com)
The average yield loss from a moderate infestation of giant foxtail, velvetleaf and waterhemp, all at 2 to 4" heights, is 4 to 6 bushels per acre. (unitedcooperative.com)
Popcorn yields (measured as pounds of shelled corn per acre) for the years 1977-1981 averaged 2846 pounds which, at 65 pounds per bushel, is equivalent to about 44 bushels per acre. (purdue.edu)

Studies have demonstrated a positive correlation exists between upper leaf nitrogen content of soybean and the occurrence of soybean aphids. (wikipedia.org)
Bean leaf beetle on soybean leaf. (goldcountryseed.com)
Soybean aphids on the underside of the leaf. (goldcountryseed.com)
In soybean seedlings, a rescue treatment is recommended if the bean leaf beetle population averages two to three beetles per foot of row at the V1 stage and significantly higher at the V2 stage. (hubnerseed.com)
What I did notice was there was a lot of parasitism going on in the sorghum when I did come across a leaf that had aphids that were dead. (agfax.com)

It is uncommon to find many aphids in wheat planted in mid-October. (farmprogress.com)
Nearly every farm in Ohio has a field or two that could benefit from planting wheat, if for no other reason than to help reduce problems associated with continuous planting of soybeans and corn. (osu.edu)
No-till wheat into soybean stubble is ideal, but make sure the soybean residue is uniformly spread over the surface of the ground. (osu.edu)

But the wet season triggered development of soybean diseases," says John Smith, WinField agronomist from Ashville, Ohio. (farmprogress.com)
Root and stem diseases, including Phytophthora , sudden death syndrome (SDS) and white mold, caused damage in soybean fields across the state. (farmprogress.com)
DISEASES, Kiersten Wise, associate professor of plant pathology: Although there is uncertainty about diseases at this time, saturated soils could create conditions suitable for soybean sudden death syndrome and, especially in northern counties, white mold. (countrypartnerscoop.com)
Soybean aphids can also transmit virus diseases to soybeans. (goldcountryseed.com)
Depending on the environmental and agronomic conditions during the growing season, bacterial, fungal, and viral diseases may develop in soybean. (rea-hybrids.com)
Soybean products can respond differently to a disease or diseases based on the plant's genetic resistance, tolerance, or susceptibility. (rea-hybrids.com)
Acceleron® Seed Applied Solutions BASIC is a combination of fungicides that helps to provide protection against common seed and seedling diseases caused by various Fusarium and Pythium species as well as Rhizoctonia solani in corn and early season Phytophthora in soybean. (hubnerseed.com)
Planting within the first 10 days after this date insures the proper planting time to avoid serious insect and disease problems including Hessian Fly, aphids carrying Barley Yellow Dwarf Virus, and several foliar diseases. (osu.edu)

Cool, wet weather combined with heavy morning fogs and low spots resulted in notoriously high infestations of soybean white mold from Decatur on north in 2015," says Bob Beck, WinField agronomist, Chatham, Ill. Some fields with susceptible varieties saw pretty significant yield losses. (farmprogress.com)
Presently, a limited number of soybean varieties are available and developed by research institutes in Pakistan given in the Table below. (gov.pk)
Farmers can reduce the risk of soybean cyst nematode damage by planting resistant varieties, rotating between PI 88788 and Peking resistance sources, and using a nematode protectant seed treatment such as ILEVO ® HL. (pioneer.com)
Strips of SCN-resistant and non-resistant soybean varieties in a SCN-infested field showing damage to the non-resistant varieties. (pioneer.com)
If no infestation is found, use good management practices and rotate a combination of resistant or susceptible varieties in the field. (pioneer.com)

The soybean aphid (Aphis glycines) is an insect pest of soybean (Glycine max) that is exotic to North America. (wikipedia.org)
The soybean aphid possesses a heteroecious holocyclic life cycle, which means the insect alternates hosts and undergoes sexual reproduction for at least part of its life cycle. (wikipedia.org)
Soybean aphids, Aphis glycines, are the most significant insect pest of soybean in Minnesota, Iowa, North Dakota and South Dakota. (no-tillfarmer.com)

I hope that we will be ahead of the sugarcane aphid when it comes time to harvest pretty quick here. (agfax.com)

Harvested acreage during the past decade has ranged from 7,900 acres harvested in 2016 to 8,900 acres harvested in 2017 (USDA/NASS 2023). (ufl.edu)

Still not finding many sugarcane aphids since the population crash this past week and really did not pick up on any when out scouting this week at all. (agfax.com)

Soybean cyst nematode pressure levels across all 2144 soybean fields sampled in 2021 and 2022. (pioneer.com)

How does the twospotted spider mite injure soybean? (krugerseed.com)

Potentially damaging levels of soybean cyst nematode were found in soybean fields in several Midwestern states. (pioneer.com)

Liberty has revised its label to provide for an increased application rate in corn and soybean. (unl.edu)

The Mississippi Agricultural Statistics Service recently reported 85,000 acres of grain sorghum for harvest, up 23,000 acres from 2013. (msucares.com)
These aphids are not only in every county with grain sorghum. (msucares.com)

Soil-residual herbicides are encouraged to enhance weed control options in slow-to-canopy soybeans reported across Nebraska. (unl.edu)
We have covered a variety of benefits to the use of residual herbicides on soybeans in this article. (unitedcooperative.com)
Farmers wanting to plant soybeans in fields where drowned-out corn was planted should understand that some commonly used corn herbicides do not allow soybeans to be planted in the same year. (countrypartnerscoop.com)

Barley yellow dwarf virus (BYDV), which is transmitted by aphids, can reduce yields (see below). (farmprogress.com)
Among states, Nebraska usually reports the highest yields because of its high proportion of irrigated acres. (purdue.edu)

Soybean aphids overwinter as eggs on their primary hosts, buckthorn (Rhamnus spp. (wikipedia.org)
Eggs begin to hatch into fundatrices when temperatures in the spring reach 10 °C (50 °F).[citation needed] Colonization of buckthorn by soybean aphids in the spring can lead to curling of leaves and twigs. (wikipedia.org)
For larger buckthorn infestations, the first part of your plan should be to remove all of the berry producing buckthorn on your property. (steigerwaldt.com)

Cost per bushel produced drives profitability, not necessarily cost per acre. (farmprogress.com)
At $13/bushel soybeans, that's $52 to $78/acre of lost revenue! (unitedcooperative.com)
What's the secret to 100-bushel soybeans? (farmprogress.com)

However, in the case of Spring sowing Soybean, vegetative growth thrives well. (gov.pk)

Nebraska's soybean acreage, estimated at 5.70 million acres in the June 30 USDA NASS report, was up 10% from last year and a record high. (unl.edu)
Total U.S. popcorn acreage over the 5-year period 1977-81 averaged 189,000 acres per year, with 55 percent of that total in Nebraska and Indiana, and another 25 percent in Iowa, Ohio and Illinois. (purdue.edu)

Venette and Ragsdale (2004) suggested that Japan probably served as the point of origin for the soybean aphid's North American invasion. (wikipedia.org)
Frequent infestations - Economically threatening infestations of soybean aphid have occurred more frequently in portions of Minnesota and neighboring states than in other parts of the soybean aphid's range, resulting in a long history of selection pressure for development of resistance. (no-tillfarmer.com)

The soybean aphid was first documented in North America in Wisconsin in July 2000. (wikipedia.org)
2004) noted that the soybean aphid probably arrived in North America earlier than 2000, but remained undetected for a period of time. (wikipedia.org)
Hemlock woolly adelgid (Adelges tsugae, HWA) is an aphid-like invasive pest of hemlock trees in eastern North America. (clemson.edu)

Soybean grows well on well aerated, medium to heavy loam soils with good drainage having pH between 6.0 and 7.5 Sodic and saline soils inhibit the germination of seeds. (gov.pk)
Seedcorn maggots feed on newly planted soybean seeds and can reduce stands. (goldcountryseed.com)
Seeds are planted at a distance of 24-40 inches between rows and 9-16 inches between plants, giving a plant population of 29,400 per acre at the closest spacing. (ufl.edu)
Optimum seeding rates are between 1.2 and 1.6 million seeds per acre. (osu.edu)

In two studies, the quantity of overwintering eggs had a strong positive correlation with the severity of soybean aphid outbreaks in the following spring. (wikipedia.org)

Though Southern Rust in corn has been spotted on the Arkansas/Louisiana state line , Joe Nowlen , GreenPoint AG salesman at GreenPoint AG in McGehee , has seen very few acres with Common Rust and zero with Southern Rust in the county. (greenpointag.com)
Pustules may have linear cracks across the top, which contrast to the round openings that appear in soybean rust pustules. (rea-hybrids.com)

Rotating Beleaf or Acephate with Movento when aphid control is needed. (arizona.edu)

In case of non-availability of Soybean seed drill and unfavorable climate conditions, soybean may be cultivated on ridges. (gov.pk)

Although it is too late to consider replanting corn, soybean farmers could decide to start over with reduced insurance coverage. (countrypartnerscoop.com)

It has been described as a common pest of soybeans in China and as an occasional pest of soybeans in Indonesia, Japan, Korea, Malaysia, the Philippines, and Thailand. (wikipedia.org)
There is uncertainty whether aphids, a common pest for soybeans, will be a problem this year. (countrypartnerscoop.com)

Some spraying for spider mites (see below) Soybean aphids have not taken off. (cropwalker.ca)
How can twospotted spider mites be sampled on soybean? (krugerseed.com)
Is there a treatment guideline for twospotted spider mites on soybean? (krugerseed.com)

Use the economic threshold (250 aphids per plant, with greater than 80% of plants infested) to determine when to apply insecticides. (no-tillfarmer.com)

The yield potential is good to excellent, but we will see some severe yield reductions in fields with uncontrolled aphids, especially on farms that had aphid issues early," he said. (msucares.com)
Most fields will need a second and possibly third application when re-infestations occur. (msucares.com)
Soybean and corn fields at the University's Rogers Memorial Farm east of Lincoln. (unl.edu)
Year after year, a large percentage of the tissue samples indicate Zinc and Mangenese deficiency in area soybean fields. (unitedcooperative.com)
Soybean stages vary the most with fields anywhere from still being planted to entering reproduction and almost ready for a fungicide application. (greenpointag.com)
Wireworm (Figure 2) can be a problem in soybean, especially in fields previously planted with sod or small grains. (goldcountryseed.com)
Infestations tend to start on the field edge's but with enough windy days, they can get carried deeper into fields. (cropwalker.ca)
Irregardless there are fields which need to be treated for plant bugs every year and failure to treat infestations in a timely manner may result in yield loss. (uga.edu)
Soybean fields were sampled during the growing season at a depth of approximately 6 inches. (pioneer.com)
SCN infestations were found throughout the study area, with over 80% of fields sampled having some level of SCN infestation ( Figure 2 ). (pioneer.com)
Test soybean fields for SCN. (pioneer.com)
Adult beetles that emerge from yellowing soybean fields will move to those that are still green to continue feeding prior to overwintering. (osu.edu)

Infestation of soybean aphids on soybean can be classified into three stages. (wikipedia.org)
The timing of a second application also gives the agronomist a chance to pull tissue samples ahead of the reproductive stages to let the soybean plant tell us what it's lacking. (unitedcooperative.com)
however, their affect is not notable until just prior to or during soybean reproductive growth stages. (rea-hybrids.com)

Plant bug insecticides which also have activity on aphids include Transform, Centric, and imidacloprid. (uga.edu)

Reduction in photosynthetic capacity of soybean may occur before plants begin to display symptoms of injury. (wikipedia.org)
Both the cabbage looper and soybean looper may occur. (utcrops.com)
Looper infestations almost always occur after plants have begun to flower. (utcrops.com)

Application of biocontrol agents like Pochonia chlamydosporia, Paecilomyces lilacinus or Trichoderma viride or Pseudomonas fl uorescens @ 4 Kg/acre at the time of planting mixed with moist FYM or cured pressmud and distributed uniformly helps in suppressing the plant parasitic nematodes. (vikaspedia.in)

SOYBEANS, Shaun Casteel, soybean specialist: Although conditions for planting were marginal to begin with, the positive development is that there has been enough moisture to allow root systems to grow through compacted soil. (countrypartnerscoop.com)
Either of these biofertilizers or in combination should be used at the time of sowing @ 5 Kg / acre for sett treatment or in soil along with FYM. (vikaspedia.in)
Apply zinc sulphate @10 Kg/acre in soil at the time of planting. (vikaspedia.in)

Like most invasive species, when the soybean aphid arrived in the Midwest in 2000, it brought none of its natural enemies along for the ride. (agfax.com)

Control of glyphosate-resistant common waterhemp with Valor XLT applied PRE followed by Liberty in Liberty Link soybean (Photos by Amit Jhala). (unl.edu)
Waterhemp has been a huge topic of discussion for the past few years, driving the importance of using residual chemistry on your soybeans. (unitedcooperative.com)
While pre emerge treatments and post residuals are extremely important in waterhemp management, they are also important in helping us maximize soybean yield potential. (unitedcooperative.com)

In these early colonies, soybean aphids are typically grouped on tender, young leaves of soybean plants. (wikipedia.org)

That is because Indiana does not have enough history of planting soybeans in July to predict whether there will be infestations. (countrypartnerscoop.com)

Approximately 90% of the rice acres have hit mid-season and are now flooded. (greenpointag.com)
The majority of the rice acres are about to go to flood , and some are already underwater with a ½ inch of internode elongation. (greenpointag.com)
Did however notice some heavy rice stink bug infestations in Cameron county and only a few in Willacy county, I saw lots of adults and nymphs along the coast in the Rio Hondo area so you might need to treat for them. (agfax.com)

The cotton acres are uniform and currently squaring with blooms expected in the next 7-10 days. (greenpointag.com)
While cotton growth may be behind due to the cooler weather across the Bootheel , it has been great for the corn acres that are tasseling (about 50% right now). (greenpointag.com)

Data from Land-Grant Universities continue to indicate that early planting if conditions are fit, provides the highest yield potential for both corn and soybeans. (hubnerseed.com)

Centric also provides good control of both plant bugs and aphids but is less consistent, especially on aphids. (uga.edu)

As the infested plant ages, soybean aphids remain on leaves near the top of the plant. (wikipedia.org)
Damage to a soybean plant during this initial stage is a result of stylet-feeding and can include curling and stunting of leaves and twigs, physiological delays, and underdevelopment of root tissue. (wikipedia.org)
As colonies expand and temperatures increase, soybean aphids move toward lower portions of the soybean plant. (wikipedia.org)
Soybean seed is of bold size and 30-35kg per acre is recommended for the appropriate soybean plant population. (gov.pk)
County Agents and scouts are reporting higher than normal tarnished plant bug infestations. (uga.edu)
Imidacloprid provides only fair control on plant bugs and aphids. (uga.edu)
Plant SCN resistant soybeans. (pioneer.com)

Treating for stem maggots depends on the level of infestations during previous cutting. (msstate.edu)

Autumn (Kharif) sowing of Soybean is successful in Punjab because it avails Monsoon rains and mild temperature for the onset of the reproductive phase and subsequent grain filling stage. (gov.pk)

The optimal temperature for soybean aphid development occurs between 25 and 30 °C, and exposure to prolonged temperatures of 35 °C (95 °F) decrease survival rates and fecundity of soybean aphids. (wikipedia.org)
Yield losses as high as 50 to 70% have been documented as a result of prolonged exposure to high densities of soybean aphids. (wikipedia.org)

Anatomy5

Organisms64

Diseases34

Chemicals and Drugs30

Analytical, Diagnostic and Therapeutic Techniques and Equipment2

Psychiatry and Psychology3

Phenomena and Processes20

Disciplines and Occupations2

Anthropology, Education, Sociology and Social Phenomena1

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Information Science2

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Crops15

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Insects8

Injury to soybean2

Pests2

Crop12

Insecticide14

Growers6

Bushels per acre3

Leaf5

Wheat3

Diseases8

Varieties5

Insect3

Sugarcane aphid1

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Scouting1

20211

Spider mite1

Cyst nematode1

Corn and soybean1

Sorghum2

Herbicides3

Yields2

Buckthorn3

Bushel3

Vegetative1

Acreage2

Aphid's2

North America3

Seeds4

Outbreaks1

Rust2

Acephate1

Unfavorable1

Farmers1

Common pest2

Mites3

Economic threshold1

Fields12

Stages3

Insecticides1

Occur3

Nematodes1

Soil3

Invasive1

Waterhemp3

Typically1

Indiana1

Rice3

Cotton2

Yield potential1

Consistent1

Plant7

Maggots1

Reproductive1

Exposure2