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Although you may think house plants benefit from a summer outdoors, you risk the introduction of pests such as aphids, mealybugs, and scales. These pests may then be brought back indoors on the ...
The brown soft scale does not normally kill the host plant, but the loss of sap probably causes it to grow more slowly and crop less heavily. The main disadvantage to the host is the sooty mould which grows on the honeydew. This reduces the area of leaf available for photosynthesis, and spoils the appearance of the plant, its flowers and fruits ...
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Both nymphs and adults suck sap from the phloem of the host plant. When a large number of scale insects are present, their collective feeding causes a yellowing of the leaves which may later fall, a loss of plant vigour and a reduction in crop yield. [2] The scale insects excrete honeydew on which bees, wasps, ants and other insects feed.
In 1888–1889 the vedalia beetle, Novius cardinalis, a lady beetle, was introduced from Australia to California to control the cottony cushion scale, Icerya purchasi. This had become a major problem for the newly developed citrus industry in California, but by the end of 1889, the cottony cushion scale population had already declined.
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An adult beech scale insect has a soft body, is yellow in color, ranges from 0.5 to 1.0 millimeter long, and has an elliptical shape. [1] The beech scale insect also has a stylet that it uses to penetrate the bark of the tree for feeding purposes. There are no male beech scale insects and the female insects reproduce parthenogenetically. [1]
Aspidiotus destructor, the coconut scale, is a species of armoured scale insect in the family Diaspididae, [1] [2] [3] found in many tropical and subtropical parts of the world. It is a serious pest of coconut and banana , and attacks a range of other fruiting trees and ornamental plants.
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