BEETLE ON GRAPES
A large attractive tan scarab beetle with black spots can be found feeding on grapes at this time of year. It is called the Grapevine beetle (Pelidnota punctata) and causes only minor damage. The grubs of this insect are found in decaying roots and stumps of trees.
FALL WEBWORM
The loose webs filled with hairy little worms seen in
trees in late July and August are the Fall webworm caterpillar. It can
be found on apples, birch, maples, roses and many other trees and shrubs.
The feeding damage leaves brown papery leaves behind. Unless a tree has
a very heavy population we consider the problem cosmetic. The nest can
be pruned out if it can be reached or sprayed with carbaryl (Sevin), permethrin,
esfenvalerate, malathion, or bifenthrin.
WHITE CRITTERS ON PLANT STEMS
About once every 5-7 years we get an outbreak of Flatid
planthoppers in the garden. The stems of hosta, raspberries, coneflower
and many other plants become covered with the fuzzy nymphs. These insects
transform into a light-blue, wedge-shaped insect. Planthoppers are similar
to aphids and suck the plant juices but plants rarely show much stress.
Look for yellowing, stunting, or leaf curling. Nymphs are more damaging
than adults. Insecticidial soap and many ornamental sprays will work if
needed.
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