Near the roots roots weevils. Medical search. Frequent questions

The African sweet potato weevil ( Cylas puncticollis ) is one of the most important pests of sweet potato in tropical Africa, notably Uganda, Rwanda, Kenya and Cameroon. (infonet-biovision.org)
The main host of all species of sweet potato weevil is sweet potato. (infonet-biovision.org)
Sweet Potato Weevil, Cylas formicarius . (bugguide.net)

In a recent survey of diseases and insect pests of conifer trees in Bhutan, the root collar weevil, Hylobitelus chenkupdorjii was found girdling young Himalayan blue pine (Pinus wallichiana) trees in Central Bhutan. (up.ac.za)
Pest control efficacy was then demonstrated using the tape formulation to control two insect pests: the diaprepes root weevil and the small hive beetle. (usda.gov)
They actively seek pests like slugs, weevils or caterpillars, invade and devour them. (basf.com)
Snout weevils (Scyphophorus acupunctatus) are serious pests and feed on several species of agave. (gardenguides.com)
Guaranteed to send a shiver through the heart of even the most experienced gardener, both the adult and juvenile vine weevil are serious garden pests, especially when growing plants in containers. (gardeningdata.co.uk)

Both the larvae and adults of the black vine weevil damage yews. (missouribotanicalgarden.org)

Check pot-grown heucheras regularly for vine weevil grubs, as they are particularly susceptible to this pest. (gardenersworld.com)
The adult vine weevil is responsible for irregularly shaped chomp marks at the leaf edge, which, while unattractive, do not affect the plant unduly. (gardeningdata.co.uk)
The Vine Weevil offspring however, are a very different matter. (gardeningdata.co.uk)

are commonly associated with bark beetles and weevils (Coleoptera: Curculionidae), and some are important tree pathogens. (up.ac.za)
Weevils (family Curculionidae) are the largest family in the beetle order, but despite its common names, the Baptisia seed pod weevil (BSPW) ( Apion rostrum ) is (now) in the family Brentidae, the "primitive" or "straight-snouted" weevils. (uwm.edu)
Clover root weevil, Sitona lepidus Gyllenhall (Curculionidae: Coleoptera), was first reported in New Zealand in 1996. (uky.edu)
New locality records for two species of protected weevils, Anagotus fairburni (Brookes, 1932) and Hadramphus stilbocarpae Kuschel, 1971 (Coleoptera: Curculionidae), from southern Fiordland, New Zealand (Report). (wikipedia.org)
The root-galling weevil, Ceutorhynchus assimilis Paykull (Coleoptera: Curculionidae), has been selected as a candidate to control hoary cress, Lepidium draba L. (Brassicaceae), a highly invasive weed in western North America. (usda.gov)

the experiments targeted the diaprepes root weevil Diaprepes abbreviatus and the small hive beetle. (usda.gov)

This is another common species of the many kinds of "root" weevils in North America, and it feeds on many kinds of herbaceous plants but is a serious pest of strawberries. (pestweb.com)
There are about 3,000 species of true weevils in North America (with more than 40,000 described species worldwide, they're the 3rd largest animal family) (numbers one and two are insects, too), 150 species of bean weevils, and 150 kinds of straight-snouted weevils. (uwm.edu)
The seed-feeding weevil Mogulones borraginis has been recommended for release in North America to help control the invasive noxious weed houndstongue, based on a petition submitted by CABI scientists in collaboration with Prof. Mark Schwarzländer (University of Idaho) and Rachel Winston (MIA Consulting). (cabi.org)

Flower Bud Weevil, Nanophyes marmoratus . (bugguide.net)

However, the host-specific weevils look the same as those from populations which are not specific to hoary cress and also attack some crop species. (usda.gov)
This weevil originally had been described as being oligophagous, attacking various mustard species, including some crops. (usda.gov)
A sibling species, the root-mining weevil Mogulones crucifer was released in Canada in 1997 and is showing impressive success in reducing houndstongue populations to benign. (cabi.org)

The plant also has an effect on asparagus beetle and bean weevils. (pfaf.org)

Numbers of leaf-eating beetles and weevils are destructive to our crops and gardens. (uregina.ca)

Strawberry Root Weevils are often described as pear-shaped or light bulb-shaped, with noticeable snouts and with antennae situated partway down the snout. (uwm.edu)

To determine if host plant abundance determined the size of clover root weevil (CRW) Sitona obsoletus larval populations, a study was conducted over 4 years in plots sown in ryegrass ( Lolium perenne ) (cv. (frontiersin.org)

Stem damage is believed to be the main reason for yield loss, although damage to the vascular system caused by feeding, larval tunnelling and secondary rots reduce the size and number of roots. (infonet-biovision.org)
Weevil damage increases the longer the crop remains not harvested. (infonet-biovision.org)
Damage by weevils can be recognised by the holes in the vines or the tunnels in the tuber when you pull them up from the soil. (infonet-biovision.org)
The rice weevil and its close relative, the granary weevil do more damage to stored whole grains worldwide than any other pest. (rosepestcontrol.com)
The larvae feed on the roots and usually cause only minimal damage. (missouribotanicalgarden.org)
Seed weevils burrow into the seedpod and damage the seeds, preventing them from being able to germinate. (guampedia.com)
Spruce trees have shallow root systems and become stressed during drought, making them vulnerable to insect damage. (hunker.com)

It has also established and dispersed very rapidly, and often suppresses weevil populations within 2 - 3 years of its establishment in a new locality. (uky.edu)
Preliminary research identified some populations of the root-galling weevil Ceutorhynchus assimilis which are highly specific to hoary cress. (usda.gov)
Analysis of weevil populations from various sites in Europe indicate that host-specific populations occur from northern Spain to northern Italy. (usda.gov)

The most damaging stage is the larva, which attacks the roots, root nodules and stolons of clovers, reducing herbage production (particularly in spring), pasture clover content, and nitrogen fixation. (uky.edu)
White Clover Weevil, Ischnopterapion virens . (bugguide.net)

Others provide control of slugs, codling moths and red palm weevils. (basf.com)
Secretions from the roots of growing plants have an insecticidal effect on the soil, effective against nematodes and to some extent against keeled slugs, they also have an effect against some persistent weeds such as couch grass[[18, 20, 200]. (pfaf.org)

Adult flax weevils have lived for over 12 months in captivity. (wikipedia.org)
Adult weevils feed on leaves, the underground storage roots (tubers) and the vines of sweet potatoes. (infonet-biovision.org)
They prefer to feed on storage roots, but at the beginning of the growing season, when the plants have not yet produced storage roots, the adult weevils live on the stem and leaves . (infonet-biovision.org)
For adult weevils, picking them off plants at night is what's required, while the young grubs can be controlled using nematodes, tiny parasitic worms, although this is a poor option in dry conditions. (gardeningdata.co.uk)

Mature larvae of this seed feeding weevil fall into the tube attached to the gauze bag and can easily be collected (Credit: CABI). (cabi.org)
Fortunately, rearing is relatively easy, and so CABI was able to send hundreds of M. borraginis to a quarantine laboratory at the University of Idaho led by Prof Mark Schwarzländer, to conduct research on the chemical ecology of the weevil affirming its environmental safety. (cabi.org)
In the meantime, we are maintaining colonies of the weevil at CABI and in quarantine in the USA, so that we will be ready to release it when all the necessary checks and approvals have been done and granted. (cabi.org)

Almost all weevils are plant-eaters. (uwm.edu)
The adults cut notches in the leaf edges, and the grubs eat the plant roots. (gardenersworld.com)
As the plant gets older and starts to form storage roots, the weevils search for exposed roots. (infonet-biovision.org)
Dig up any roots around the agave plant with a sharp shovel. (gardenguides.com)
Even a brief period of water-logged soil can result in root rot and plant death. (missouribotanicalgarden.org)
Look-alikes: Any root problem can cause a plant to decline and die but the honey-colored mushrooms are distinctive to armillaria root rot. (missouribotanicalgarden.org)
If you have room, dig up the plant and repot it, placing it in your cellar and continuing to harvest from it, or hang it upside down from the roots. (hobbyfarms.com)
Both blackfly and, their equally unwelcome cousins, greenfly are sap suckers, feasting en mass, and secreting a sticky substance called honeydew, which encourages sooty moulds that inhibits the ability of the plant to photosynthesize. (gardeningdata.co.uk)
Mealybugs infest the leaves, roots, and shoot tips, and suck the juices out of the plant, leaving it in a weakened state. (guampedia.com)

Since they grow by rhizomes in the ground, unless you kill these roots or dig them out completely, the agave Americana will return, but you can effectively kill these tough desert plants with some diligence. (gardenguides.com)

Larvae live in the soil feeding on the roots of plants while the adults feed on the leaves, stems, and berries. (pestweb.com)
Females deposit their eggs on the soil and the larvae burrow in to feed on the roots. (pestweb.com)
Heucheras have shallow roots, which means they're prone to 'frost heaving', where the plants are pushed out of the soil by developing ice. (gardenersworld.com)
Dig up, cut off greens about 1 to 2 inches from top of root (leave root tip intact), brush off loose soil, and layer in damp sand, sawdust or peat moss. (hobbyfarms.com)

1991) reported on serious weevil attacks on sweet potato nurseries in Ethiopia. (infonet-biovision.org)
White pine weevil attacks leader shoots in Norway spruce causing them to bend like a shepherd's hook and the needles to fall off. (hunker.com)

These tubers don't store as well in a root cellar as they do in the ground-they'll last all winter in the garden if the ground doesn't freeze. (hobbyfarms.com)

The absence of the fungus Beauveria was suggested as a reason for the lack of bio-control of flax weevils on Mana, but this entomopathogenic fungus turns out to be already present on the island. (wikipedia.org)
Some are ideal for managing fungus gnats, root flies and western flower thrips in horticulture and vegetable production. (basf.com)

Then wash the roots, ensuring all traces of eggs and grubs are gone, and replant them. (gardenersworld.com)
The grubs are more damaging, feeding, boring and making tunnels into the stems and roots. (infonet-biovision.org)

The flax plants on Mana Island are being studied to see if they are more susceptible to flax weevil browsing, with field trials of flax plantings from different sources. (wikipedia.org)

Green Immigrant Leaf Weevils made their way from Europe to New York by 1906. (uwm.edu)
Leaf beetles feed on leaves, and some of the weevils on fruit. (uregina.ca)

In areas of the South and Southwest with light, sandy soils, root-knot nematodes can infest yews. (missouribotanicalgarden.org)

Cold Stream Farm supplies English Oak trees which are grown as bare root seedlings and transplants and sold both wholesale and retail with no minimum order. (coldstreamfarm.net)

Treat weevil problems by pruning away all dead tissue. (hunker.com)

Examination of the roots will reveal root-knots in which the parasitic nematodes live. (missouribotanicalgarden.org)

Each sucker should have a piece of underground stem with a few roots attached to it. (indiaagronet.com)

Like many root crops, carrots can be stored where grown in the garden, if you don't have problems with rodents and can mulch deeply with 1 to 2 feet of hay or straw. (hobbyfarms.com)

Armillaria is an aggressive root rot that can attack stressed or even otherwise healthy plants. (missouribotanicalgarden.org)

This not only conserves moisture but also prevents vine weevils from laying their eggs. (gardenersworld.com)
Add a thick layer of gravel over the compost, as this can help prevent vine weevils from laying eggs. (gardenersworld.com)
Weevils feed on the storage roots and lay eggs just below the surface of the root. (infonet-biovision.org)

Involvement of industry field consultants was an essential aspect of the biological control release programme in the North Island where the weevil was already widespread before M. aethiopoides was introduced. (uky.edu)

Dispose of these roots in a sealed trash bag and do not compost them. (gardenguides.com)

Branches are quite brittle but the fleshy, jointed stems root easily where they touch the ground. (succulent-plant.com)

Feeding and egg-laying punctures (numerous small holes) lower the quality of the root and can reduce the market price. (infonet-biovision.org)
Even low level of infestation can reduce root quality and marketable yield because the plants produce a bitter toxin (terpenoid) in response to feeding by weevils. (infonet-biovision.org)
Seed-feeding Weevil, Exapion fuscirostre . (bugguide.net)
These offspring are Leatherjackets - a repulsive grub, brownish grey in colour, tubular, and actually, a small miracle of design, a highly engineered and efficient feeding machine that gorges on grass roots, so killing the plants. (gardeningdata.co.uk)

Anatomy2

Organisms3

Sweet Potato Weevil3

Pests5

Black Vine W1

Vine weevil3

Curculionidae5

Diaprepes Root W1

North America3

Flower Bud Weevil1

Species3

Asparagus Beetle1

Beetles and weevils1

Strawberry Root Weevils1

Sitona1

Damage7

Populations3

Clover2

Slugs2

Adult4

CABI3

Plant9

Rhizomes1

Soil4

Attacks2

Tubers1

Fungus2

Grubs2

Susceptible1

Leaf2

Infest1

Seedlings1

Treat1

Parasitic1

Stem1

Crops1

Armillaria1

Eggs3

Control1

Compost1

Stems1

Feeding4