Two-spotted spider mite of Hemp Hemp mites are called as two- spotted spider mites, Tetranychus urticae because they have two red spots on their thorax (Photo 1). Although these mites are very tiny (1/20 inch long, oval shaped and brownish … Continued
Author Archives: gbjagdale
Kill both spider mites and whiteflies simultaneously with Amblyseius swirskii
Whiteflies and two-spotted spider mites When vegetables or ornamentals are grown in the greenhouse, they are simultaneously attacked by two most economically important pests like greenhouse whiteflies, Trialeurodes vaporariorum (Photo 1) and two-spotted spider mites,Tetranychus urticae (Photo 2). This poses … Continued
Simultaneous release of beneficial nematodes and predatory mites enhances thrip control
Damage caused by the western flower thrips The western flower thrips (Frankliniella occidentalis) are one of the most damaging pests of many crops, ornamental plants, field crops and fruits. Both adults and nymphs of mites feed directly on the young … Continued
Control Strawberry root weevil with Steinernema carpocapsae nematodes
Damage caused by strawberry root weevils Strawberry root weevils (Otiorhynchus ovatus) cause serious damage to strawberries. The adults of strawberry root weevil mostly feed on the edges of strawberry leaves that gives typical notched appearance but their grubs feed by … Continued
Control of two-spotted mites with Amblyseius swirskii in greenhouses
What are two-spotted spider mites? Adults of two-spotted mites (Tetranychus urticae) are about 1/20 inch long, oval shaped with four pairs of legs and two red spots on the thorax (Photo 1). These mites can be brownish to yellowish in … Continued
Now is the best time to stop emergence of Japanese beetles from their pupae
Japanese beetle (Popillia japonica) adults are oval shaped, 1.5-inch long and shiny metallic-green in color (Photo 1). The mature grubs of Japanese beetles are whitish in color with yellowish-brown head capsule and three pairs of thoracic legs. When disturbed, grubs … Continued
Crop pollination with bumblebees, Bombus impatiens in greenhouses
Crop Pollination in greenhouses Bumblebees, Bombus impatiens (Photo 1) have been used for pollination of many crops including cucumbers, peppers, squash, tomatoes and several fruits like apple, blackberry, blueberry and pear (Photo 2) that require the additional help for setting … Continued
Organic control of dog fleas with Steinernema carpocapsae nematodes
Damage caused by fleas (Ctenocephalides felis) Fleas are small wingless insect pests of dogs, cats, humans and rats. Since fleas do not have wings, they can disseminate only by jumping from one host to another host. Fleas use their piercing … Continued
Organic control of two spotted spider mites, Tetranychus urticae
Organic control of two spotted spider mites with predatory mite, Amblyseius andersoni Two spotted spider mites (Tetranychus urticae) are serious pests of many greenhouse plants and field crops but they can be organically controlled by using predatory mites called Amblyseius … Continued
Organic control of Aphids with Parasitic wasp, Aphidius colemani
What is organic insect pest control? Organic pest control is a method in which beneficial bugs such as parasitic wasps, predatory insects and mites, and plant-based products are used for the control of insect pests of various crops. These biological … Continued