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| Analysis - view details of type of pest/disease/disorder | |
| Symptoms | Feeding by larvae in the sheath of young needles in May leads to shortened and distorted needles, which soon turn yellow and drop in winter. In the sheath development of a gall, within the gall an orange-red larva of 1-2mm in size. | |
| Impact | Midges swarm in May, egg deposition on needles in May; larvae enter the needle base; hibernation outside the needle in a cocoon; may cause loss of needles or act as a vector for dieback-fungi; possibilities of errors: other gall midges on pine needles. | |
| Control | Nearly non necessary | |
| Hosts | Pine; | |
| Affected plant parts | Needle; |
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| Thecodiplosis brachyntera - shoot with shortened, distorted and yellow needles |
Thecodiplosis brachyntera - needle sheath with larva |
Thecodiplosis brachyntera - larva detail |
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