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wingless and immobile, and covered with a hard scale (armoured scales and soft scales) or with waxy threads (mealybugs). They suck the sap of plants a…
increased transpiration and reduced plant growth. As damage increases whole leaves turn yellow, and as more cell sap is removed, the leaf, and…
pear, quince and a few other woody Rosaceae. Life cycle and appearance of Woolly apple aphid In contrast to other aphids , the life cycle and survival…
adults reach reproductive maturity within 2 or 3 days, oviposition begins about 1 or 2 days after mating and adults live for several months. Females…
extensively in North and South America and Europe where it has caused severe yield losses in many berry crops, cherries and grapes. Life cycle and…
always pink or red. They appear matt, never glossy. Winged individuals have a brown-black head and thorax and a reddish abdomen. There is a dark brown…
types of fruit and forest trees, and ornamental shrubs and trees. Damage is mostly caused by sap depletion; the shoots dry up and die, and defoliation…
preferably on or near the buds and flowers. Each female lay egg about 200-400 in singly or in small groups. Young larva enters the buds or flowers or…
growth and causing deformation and / or yellowing of leaves, sometimes followed by defoliation. The overall effect is a reduction of photosynthesis an…
eggs in clusters of 150-200 and can lay up to 2000 eggs in a lifetime. Eggs are white, pinkish or light green and spherical, and are usually laid on…
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