Basic pest and disease resistance management strategies in greenhouses
Resistance to chemicals is due to the intense selection pressure exerted on the population that is controlled. There is only a limited number of chemicals...
Tag Archives: Insects
Onion thrips
Description Thrips tabaci and western flower thrips Frankliniella occidentalis are sap feeders. Common thrips as in the main image; Order: Thysanoptera, Family: Thripidae. They are...
Plusia looper
Plusia looper description Plusia looper, also known as Cabbage looper or more correctly Trichoplusia ni are light green caterpillars with white or pale yellow stripes...
American Bollworm
Bollworm description Bollworm, also known as tomato fruit worm or American Bollworm, Helicoverpa armigera, are small caterpillars (about 30mm long, slightly more than 1 inch)...
Sweet potato whitefly
Sweet potato whitefly description Sweet potato whitefly (Bemisia tabaci, order Hemiptera and family Aleyrodidae) is a sap feeder. The adults are about 4-5mm long with...
Insect screens in greenhouses – effective biological control
Insect screens or thermal screens are designed to reduce heat in summer and increase temperatures during the night, but also to reduce the number of insects entering the...
