Cotton aphid Life cycle and appearance of Cotton aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great…
black cutworm Agrotis ipsilon and the turnip moth Agrotis segetum . The larvae of these moths usually feed on roots and plant parts close to the…
following stages: egg, three larval instars, a pupa and the adult fly. The eggs are laid singly and are bean-shaped. A first instar larva is…
are yellow-brown and not yet covered with wax. They are actively mobile and known as ‘crawlers’. Second instar nymphs are darker and less active. From…
coffeae , occurs widely in tropical regions and in greenhouses throughout the world. It is a severe pest in coffee and citrus. Many ornamental crops…
increased transpiration and reduced plant growth. As damage increases, whole leaves turn yellow, and as more cell sap is removed, the leaf, and…
cucumber and eggplants. It lives exclusively on the leaves and is often present on weeds in greenhouses. About Impatiens thrips Life cycle and…
(apple, pear, plum and cherry). However, it can attack a large scale of other woody plants and is occasionally a problem on roses and other…
ornamental crop plants, such as roses and gerbera, aquatic plants, vegetable crops such as celery, pepper and lettuce, and weeds. The secretive habit…
five larval stages, a pupa and the adult moth. The eggs are small, white and elliptical and are laid singly on the leaf of Allium plants. After a…
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