Agriculture Reference
In-Depth Information
Insecticidal soaps
Kaolin (Surround or other proprietary spray)
Lime sulfur
Neem
Nicotine sulfate
Pyrethrins
Pyrethrum
Rotenone
Sabadilla
Spinosad
Sticky traps
There are also traps to manage insects. Pheromone-based traps emit hormones that at-
tract insects during the mating cycle. These traps contain an attractant meant to lure the
insects into a trap from which they cannot escape. Sticky traps and tape work in much the
same way and can catch a wide variety of insects. They can be helpful to identify other
insects that may be pests. Note, though, that such traps can attract more insects to the vine-
yard than you would like. Place them on the perimeter to draw the insects away from your
vines.
COMMON INSECT PESTS
Here are some of the bugs that may eat your grape leaves—and even the roots. Only
treat them with insecticides if the infestation gets too large to handle by other means.
Branch and Twig Borer
Also known as the grape cane borer, this pest is a dark brown beetle roughly cylindrical
in shape. The larvae drill into wood on trunks and canes, often at the site of old pruning
sounds. Shoots wilt and collapse.
CONTROL
Remove dead wood at pruning time. Burn brush or wood piles before larvae hatch in
March. Beneficial nematodes may help control larvae; contact your local extension service
for advice.
