Common greenhouse pests include:

Pests
Description
Control
Aphids
Small, pear-shaped insects with long legs; often pale green to white; may be winged or wingless; secrete a sticky honeydew; found on new buds, rapidly growing tips, underside of leaves near veins; they suck plant juices, reducing vigor, stunting plants, and transmitting diseases.
Squashing; heavy spray of water; soap spray; homemade spray; predators (brachonid wasps, certain predatory midges, green lacewings, ladybugs).
Spider Mites
Nearly microscopic (less than 1/16 inch) arthropods with four pairs of legs as opposed to an insect's three pairs; create webbing strung between the leaf and stem; damage appears as leaf mottling; thrive in hot dry seasons and prefer foliage plants.
Repeated heavy spray of water; predators (predatory mites).
Whiteflies
Tiny, delicate, white-winged insects that feed on a wide range of plants; in large numbers, they'll rise up in a white cloud when disturbed; immature stages look like transparent to opaque white dots on underside of leaves; adults congregate on tips; damage similar to that of aphids.
Soap spray; yellow sticky traps; predators (Encarsia formosa wasps).

 

Some schools also report success after carefully experimenting with homemade sprays containing hot pepper, garlic, and other strong substances. A number of greenhouse pests, particularly whiteflies, can be lured to yellow boards or cardboard hung throughout the greenhouse and covered with Tanglefoot, a thin layer of axle grease, or another sticky substance. Natural predators or biological controls can discourage populations of certain greenhouse pests. Ladybugs, praying mantises, and other beneficial insects, if properly introduced, can keep pest populations down, and can provide fascinating fuel for investigations

Share this

KidsGardening logois a division ofNational Gardening Assocation logo


 

For those who choose to use Text to Donate: A one-time donation of $10 will be added to your mobile phone bill or deducted from your prepaid balance. Message and Data Rates may apply. All charges are billed by and payable to your mobile service provider. Service is available on Verizon Wireless, AT&T, Sprint, and T-Mobile. All purchases must be authorized by the account holder. By participating you certify that you are 18 yrs or older and/or have parental permission. Donations are collected for National Gardening Association and subject to the terms found at igfn.org/t. Privacy policy: igfn.org/p. *Text STOP to 80888 to stop; Text HELP to 80888 for help.*

 

Copyright © 1999-2012 National Gardening Association     |     www.kidsgardening.org & www.garden.org      |     Created on 03/15/99, 

Last updated on 04/20/2014
seo google sıra bulucu kanun script encode decode google sira bulucu google pagerank sorgulama seo google sıra bulucu ukash kanunlar