• overwinter
  • Cultural management of annual bluegrass weevil can be achieved by limiting the populations of susceptible hosts, providing adequate moisture and fertility, and removing leaf litter from turf areas in the fall as this is where the adult ABWs overwinter. (wikipedia.org)
  • plants
  • Vine weevil is an insect that can infest a wide range of ornamental plants and fruits, especially those grown in containers. (rhs.org.uk)
  • On mild spring or summer evenings inspect plants and walls by torchlight and pick off the adult weevils. (rhs.org.uk)
  • But, homes that have lots of azaleas, rhododendrons, or other host plants around the foundation may find weevils crawling up outside walls (they don't fly) and entering around doors, windows, or along the roof line. (colonialpest.com)
  • Handpick the weevils on small plantings or individual plants. (hortmag.com)
  • Pesticides should be applied thoroughly to kill weevils on the plants and on the media or soil surface where the weevils hide during the day. (ncsu.edu)
  • Adult weevils can be controlled by using sticky barriers on the trunks of affected plants, as the weevils return to the soil each day. (wikipedia.org)
  • The lesser clover leaf weevil is an oligophage, limited to certain plants in the legume family. (wikipedia.org)
  • Because they sometimes kill their host plants, adult weevils are able to walk considerable distances - up to 600 m - in search of new patches of coxella. (wikipedia.org)
  • soil
  • Barriers of cultivated soil around the perimeters of fields will help protect crops from the attacks of crawling weevils. (gov.mb.ca)
  • ornamentals
  • For labeled pesticides, see the North Carolina Agricultural Chemicals Manual under the headings: Trees and Woody Ornamentals, Plant:Any, Black vine weevil. (ncsu.edu)
  • plant
  • There's one fall invader that we don't see as often, but that in the right situation, can be an annoying pest - plant weevils . (colonialpest.com)
  • In most yards, plant weevils are a minor problem and may never be noticed either inside or out. (colonialpest.com)
  • Do I Have Plant Weevils Outside? (colonialpest.com)
  • As always, weather-proofing doors and windows, screening vents, and caulking openings will help keep plant weevils and other fall invaders out. (colonialpest.com)
  • damage appears as distinct notches in the plant tissues. (wikipedia.org)
  • Hadramphus spinipennis coxella weevil: a manual with aids to identification and descriptions of plant damage. (wikipedia.org)
  • A number of weevils use A. rosea as their host plant, including Rhopalapion longirostre, Alocentron curvirostre, and Aspidapion validum. (wikipedia.org)
  • roots
  • Larger roots are stripped of their bark or girdled, or they have notches chewed out of them. (ncsu.edu)
  • black
  • Adult weevils are approximately 9mm (about 5/16in) long and dull black with dirty yellow mark on the wing cases. (rhs.org.uk)
  • The black vine weevil has the name "vine" in its common name because it was first recognized as a pest of grapes in Germany in 1934. (ncsu.edu)
  • A 1997 study in California showed a great reduction of black vine weevil in commercial planters using parasitic nematodes, Steinernema feltiae (327/in2) or Heterorhabditis bacteriophora (474/in2). (ncsu.edu)
  • Apparently, carbaryl (Sevin), malathion and isofenphos (Oftanol) are not effective for black vine weevil control. (ncsu.edu)
  • The adult weevil is matte black with fused wing covers, and is unable to fly. (wikipedia.org)
  • http://www.fruitdisease.co.uk/EntomologyResearchPage3.asp "Black Vine Weevil" (PDF). (wikipedia.org)
  • reproduce
  • Female weevils have the ability to reproduce parthenogenetically with fertilisation of eggs required to produce males, though no males have been observed. (wikipedia.org)
  • insect
  • The annual bluegrass weevil, scientific name Listronotus maculicollis, is a turfgrass insect pest which feeds mainly on annual bluegrass (Poa annua). (wikipedia.org)
  • control
  • Gardeners with vine weevil should keep up their guard because stopping control measures after the apparent disappearance of the weevil can allow numbers to build up again. (rhs.org.uk)
  • Like most fall invaders, these weevils are difficult to control indoors with insecticides because they hide in lots of different places. (colonialpest.com)
  • Beneficial nematodes ( Heterorhabditis bactenophora -marketed as Cruiser, Heteromask, and Gardens Alive Grub-Away Nematodes) have been successfully used to control weevils in container nursery operations, though less reliably in landscape situations. (hortmag.com)
  • found
  • Many farmers think the problem is when the weevils start to feed on the leafs, but Bowness-Davidson says the big problem is often found deeper. (realagriculture.com)
  • Once inside, the weevils hide in cracks and crevices, behind baseboards or drapes, in attics, or are sometimes found in sinks, tubs, or other places with water. (colonialpest.com)
  • We also swept some volunteer canola for cabbage seedpod weevils because the plots are further behind, and we found threshold numbers of three to four weevils per sweep. (saskatchewan.ca)
  • If weevils are found throughout the field, they have been there for some time already. (gov.mb.ca)
  • The weevil prefers spotted knapweed, but it is sometimes found on diffuse knapweed. (wikipedia.org)
  • Coxella weevils are also regularly found on Chatham Island lancewood (Pseudopanax chathamicum), on which they seem to shelter but only intermittently eat. (wikipedia.org)
  • reduction
  • The cause of this is likely to be the forest clearance on Stephens Island which caused a reduction in weevil habitat, when a lighthouse was built there in 1892. (wikipedia.org)