insects reproduce quickly and are difficult to control. They hide in wall cracks and other tight spaces, evading routine cleaning and disinfection…
lettuce, brassicas and potatoes and many ornamentals. The shallot aphid is cosmopolitan and widely spread in Europe. Life cycle and appearance of The…
soil in late summer to fall, and females mate and lay 200-300 eggs. Larvae emerge within one week and then feed on roots and crowns of grasses during…
shores and intertidal zones, and they breed readily in other moist environments. In greenhouses, adults feed on algae and their larvae on algae and…
generally in June and July and land on trees to mate. During the night the females move to the ground to lay their eggs. Eggs are shiny and white. The…
about 2 weeks, and the young larvae begin feeding on fine roots and organic matter. They moult and become second-instars after 2-3 weeks, and…
enormous damage, and with heavier infestations plant growth is arrested and the flower buds are so badly affected that they shrivel and die. Damaged…
as dead weeds, leaf litter and tree bark, and become active in early spring. They begin to feed on developing plant buds and shoots immediately,…
ellow, and finally green. When they hatch, the adults have a yellowish-green colour and whitish wings, which become transparent over time, and their…
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…
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