Vine & Root Weevils – How to control

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Vine &

Root Weevils

Description: Adults emerge mid-May to late July. About 5-6

weeks later, eggs hatch into grubs which search out

roots to feed on. Grubs feed all season. The worst injury

occurs when overwintering grubs feed on roots in spring;

plants may fail to put out new growth and die. Since

adults feed only at night (making characteristic notches

in foliage) and grubs live in soil, this destructive

insect is often not identified as a problem. If you

see notches in leaves, or wilting (despite ample moisture,

especially on container plants), you may assume these

grubs are feeding on roots. Weevils increase quickly

– as many as 500 eggs per female! They prey on a wide

range of trees, shrubs, houseplants and berries.

Solution: Because

the adults hide during the day in debris at the base

of plants, and grubs live in the soil, eating roots,

both stages are vulnerable to control by Grub-Away Nematodes.

 


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