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green shield bug

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green shield bug

Post  littlejo on 1/1/2013, 5:46 pm

I know, I should know what this is. Green stink bug? That is the only pic that looks like it. Mine is solid green. I was watering my garden. I have beets, radishes, turnips, spinach, carrots, leeks, scallions, kale, I think? The turnip leaves have been eaten til they look like lace. I figured it might be slugs, so I put out some slug bait. The bed is 4 x 8, and I was at the short end, watering. I saw the green shield shaped bug in a bare area. By the time I got down there it was gone.
Will these eat my plants? What can I do to git rid of them, if needed.
Should not be having bug troubles in winter! But even tho nights have been down in the 20's, I have some strawberries blooming!
Jo
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Brassicacea or Cruciferae

Post  batmap on 6/29/2013, 2:48 pm

According to essentialgardenguide turnip page, in addition to green stink bug you may have Flea Beetle or Aphids.

Problem: Flea Beetle
Affected Area: Leaf and Root

Description: Tiny holes ?pinholes? chewed in leaves by adult insect. Adult insects are 1/16" long, hard shelled, shiny, dark-colored beetles that jump when disturbed. Slender, whitish, cylindrical larvae feed in or on roots but root damage is generally minimal.

Control: Dust with Rotenone. Keep debris removed. Rotate location of planting from year to year.

Problem: Aphids
Affected Area: Leaf and Stem

Description: Small Insects found on new stems and the underside of the leaf. Usually green. They suck fluids from the plant leaving a honey dew substance behind. Leaves turn pale yellow.

Control: Insecticidal soaps or a strong stream of water. Ladybug beetles are natural predators. * Thiodan or Diazinon ? more than one application may be required. A layer of aluminum foil under plants reflects light to underside of leaves and may deter aphids. * Pesticide use and recommendations for various areas are constantly changing. Check with your County agent for current recommendations.

I noticed you mentioned you have 3 plants from Brassicacea: radish, turnip, and kale. Brassicaceae or Cruciferae, also known as the crucifers, the mustard family or cabbage family is a family of flowering plants (Angiospermae), which makes me think you more likely have an infestation of Mealy aphid (Brevicoryne brassicae).

Mealy aphid (cabbage aphid page on wikia) reportedly feed on many varieties of produce, including cabbage, broccoli, brussels sprouts, cauliflower, and many other members of the genus Brassica, but do not feed on plants outside of the Cruciferae family.
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