• ants
  • A variety of agents are being studied as possible biological pest controls for the weevil, including ants, parasitic wasps, at least one virus, and Bacillus thuringiensis. (wikipedia.org)
  • insect
  • The Argentine stem weevil is a small grey insect up to 3 mm (0.12 in) long, with a waxy covering. (wikipedia.org)
  • Whilst damp is a leading factor resulting in woodworm some species of woodboring insect, such as the Woodboring weevil, are only found in instances where fungal rot has already begun to occur. (wikipedia.org)
  • beetles
  • Yellow-poplar weevils are small black-snout beetles and are tick-like in appearance. (wikipedia.org)
  • The resulting grubs then feed on the wooden item causing both structural and cosmetic damage, before pupating and hatching as beetles which then breed, lay eggs, and repeat the process causing further damage. (wikipedia.org)
  • As the beetles evolved consuming dead wood in various forest habitats, most grubs, if not all, typically require that the wooden item contain a higher moisture content than is normally found in wooden items in a typical home. (wikipedia.org)
  • pest
  • This weevil feeds on a number of crop plants including perennial ryegrass, on which it is a major pest, Italian ryegrass, other grasses, wheat, barley, oats and maize. (wikipedia.org)
  • As a result, the weevil is considered a major pest in palm plantations, including the coconut palm, date palm and oil palm. (wikipedia.org)
  • In 1964 this weevil was accidentally introduced in the US, state of Florida, where it is at present a major pest of citrus. (wikipedia.org)
  • parasitic
  • The host plants include the following, listed by genus: Arisaema Acer Aster Astilbe Bergenia Camellia Echinacea Epimedium Euonymus Heuchera Hosta Kalmia Lilium Phlox Primula Rhododendron Saxifraga Sedum Syringa Taxus Tsuga Wisteria The soil dwelling grubs can be controlled using parasitic nematodes, for example Steinernema kraussei and Heterorhabditis bacteriophora, which can be bought from some garden centres and by mail order. (wikipedia.org)
  • Adults
  • In the fall, the grubs bore holes through the shells from the inside to emerge into the soil where they may live for a year or two before maturing into adults. (wikipedia.org)
  • populations
  • While most weevils are a solid color it has been noted that some southern populations exhibit yellow antenna. (wikipedia.org)
  • Most years, natural pests keep weevil populations in check - parasites sometimes destroy more than half the pupae populations. (wikipedia.org)
  • The wasp has become established in the North Island and appears to be reducing populations of the weevil. (wikipedia.org)
  • foliage
  • While these weevils do harm foliage they shouldn't affect the overall health and longevity of established trees. (wikipedia.org)
  • soil
  • The weevil spreads mainly by "hitchhiking" when infested plants, soil, and containers are moved from site to site. (wikipedia.org)
  • occurs
  • The yellow-poplar weevil, scientific classification Odontopus calceatus, is a type of weevil which occurs in much of the eastern and southeastern United States. (wikipedia.org)
  • found
  • This weevil is found in association with various plants of Fagaceae, Betulaceae, and Juglandaceae, in particular white oak and American beech. (wikipedia.org)
  • native
  • The Argentine stem weevil is native to South America where it is present in Brazil, Uruguay, Argentina, Bolivia and Chile. (wikipedia.org)
  • Europe
  • Originally from tropical Asia, the red palm weevil has spread to Africa and Europe, reaching the Mediterranean in the 1980s. (wikipedia.org)
  • appears
  • Sitophilus zeamais appears similar to the rice weevil (Sitophilus oryzae), but has more clearly marked spots on the wing covers, and is somewhat larger. (wikipedia.org)
  • trees
  • Before leaf buds on Yellow-poplar, Sassafras, or Magnolia trees open, weevils attack the buds and leave their distinctive feeding marks. (wikipedia.org)