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Pears can be attacked by a number of pests and diseases. Particularly frustrating can be the pear midge which can devastate a promising looking harvest early in the season.
Severe damage caused to a fruitlet by the larvae of pear midge.
Pear midge is a tiny fly with larvae that develop inside pear fruitlets, causing them to turn black and drop off the tree in early summer.
Pesticides for gardeners (Adobe Acrobat pdf document outlining pesticides available to gardeners)
The adult flies are tiny midges that emerge in spring, when the females lay eggs in pear blossom shortly before it opens.
The larvae feed inside the developing fruitlets, reducing the centre to a blackish brown mush. The larvae are fully fed by late May-June, when the damaged fruitlets drop off.
The larvae enter the soil where they overwinter inside silk cocoons before pupating in the spring.
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