y, the citrus mealybug ( Planococcus citri ) can also appear in cucumber, melon and aubergine. Life cycle of mealybugs Life cycle and appearance of…
Chafers General The chafers are beetles of the Scarabaeidae family. The larvae of both species live in the soil and feed on the roots of many plants.…
different species of fern, orchid, ficus, oleander and carnation. Life cycle and appearance of Hemispherical scale An adult female of S. coffeae has a…
Scale infestation can be seen by the appearance of the scale armour on stems, leaves and fruits of hosts. Infestations on the leaves and stems may…
diameter and circular or oval. The cast skins of the nymph form a light yellow spot near the centre of the scale called the exuvium. Adult females can…
infects the stem base and the roots, whereas the ascospores infect the above-ground plant parts. In greenhouses, usually only mycelium is produced by …
spots. The colour of the scale darkens as the female ages. The size, shape and characteristics of the female also vary with different host plants. The…
by the fungus within the insect 2 At high humidity, the fungus grows from within through the insect cuticle and produces spores on the outside of…
to crops. The most harmful caterpillars that occur in greenhouses belong to the Noctuidae (the noctuid or owl moths), which is the largest of all…
be recognized from the outside by the small narrowing of the tip of the mature fruits. The symptoms on stems, leaves and inside the fruits may occur…
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