Raspberry mosquito
| Raspberry mosquito | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
bile |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Lasioptera rubi | ||||||||||||
| ( Closet , 1803) |
The raspberry mosquito ( Lasioptera rubi ) is an insect belonging to the gall mosquito family, a suborder of the mosquitoes (Nematocera). It is a rare pest on raspberries .
description
features
The mosquitoes will be about two millimeters long, have a small head and large black eyes. Their bodies are brown, their abdomen is also black and they have silver horizontal stripes. There are dark scales on the wing veins . The larvae are about two to three millimeters long, orange-red with slight indentations around the body. The pupa is also orange-red and two millimeters long.
Way of life
In May, the mosquitoes lay eggs in clusters of around 15 on buds and young shoots of raspberries and blackberries . After about ten days, the larvae hatch and dig into the shoots and cause the typical galls there . The larvae overwinter in the galls and pupate there in April. The adult insects hatch two to three weeks later. Often the mosquitoes also appear in wild blackberry bushes.
Plant damage
Symptoms
The larvae of the raspberry flies bore into the rods and stimulate them to form a bile . The infected rods are impaired in growth and yield or die completely above the bile.
Countermeasures
At the moment, no chemical pesticides are permitted for the house or allotment garden . The product Mospilan SG is approved for commercial cultivation until December 31, 2016 .
Due to the damaging effect on beneficial organisms such as predatory mites , ground beetles , lacewings and seven-point ladybirds , mechanical control should be preferred. To do this, all infected rods should be cut off and destroyed before April. If necessary, you should also check nearby wild blackberry and raspberry bushes for infestation.
Natural enemies
The larvae of Himbeergallmücke be of different jewel wasps of the genera (Chalcidoidea) Eupelmus and Torymus parasitized.
Individual evidence
- ↑ a b http://www.beerendoktor.de/index.php?d=1&f_id=2&kr_id=173
- ↑ http://www.raphael-mack.de/garten/die-himbeergallmucke/
- ↑ Federal Office for Consumer Protection and Food Safety https://portal.bvl.bund.de/psm/jsp/DatenBlatt.jsp?kennr=005655-00
- ^ Lasioptera rubi . www.commanster.eu. Retrieved May 14, 2018.
