A network that helps people worldwide obtain rapid advice and information on crop protection, including the identification and management of plant pests.
PestNet is a network that helps people worldwide obtain rapid advice and information on crop protection, including the identification and management of plant pests. It started in 1999. Anyone with an interest in plant protection is welcome to join. PestNet is free and is moderated, ensuring that messages are confined to plant protection.
Pulvinariais a very large genus of soft scale insects. The species are difficult to identify, and identification requires production of high-quality slide mounts and examination of them at high magnifications using a compound light microscope. The best specimens for identification purposes are the young adult females just before or just as they are beginning to produce the white ovisac. Old females (which have produced large ovisacs) like the ones in your photograph are much more difficult to prepare on slides and identify.
The population is about to explode, as all those white waxy ovisacs are full of eggs. Mineral oil emulsion sprays should kill the hatchlings without seriously affecting the predators and parasitoids in the crop.