Fight cherry fruit fly


Fighting cherry fruit flies in early summer

Fight cherry fruit fly: cherry

In early summer, with the appearance of the cherry fruit fly - Rhagoletis cerasi - be calculated. If you want to achieve a rich cherry harvest from your garden later in the year, you should keep your eyes open for the small fruit flies. Direct combat is rather difficult.

Mid-May to early June The flight of cherry fruit flies begins. They are especially active in dry, warm weather.

The cherry fruit fly resembles a housefly in its appearance. It is about five millimeters long, has a shiny black body and big, green eyes. As a further characteristic it has yellowish legs and - particularly striking - a yellow, triangular label between the wings.

What infests the cherry fruit fly?

The cherry fruit fly, whose white, up to six millimeters long larvae can be found as maggots later in ripe fruit, is one of the most significant pests of sweet cherry, the Chamber of Agriculture North Rhine-Westphalia with.

In particular, medium-late and late sweet cherry varieties are infested, while early sweet cherry varieties and sour cherries are hardly affected until the cherry harvest. In rare cases, however, an infestation of sour cherries can be observed.

For new plantings, it is therefore advisable to opt for early varieties that are less frequently attacked.

The larvae of the cherry tree fly

Fight cherry fruit fly: fight

The larvae of the cherry fruit fly feed on the fruits.

The female of the cherry fruit fly stings the cherry when it turns yellow to yellow-red, and places an egg inside. Since each fruit can only pick one maggot, the cherry fruit fly marks each cherry with a fragrance that signals the other females that this cherry is already occupied.

First signs of infestation show on ripening fruits by a brown, sunken spot next to the fruit stalk. The flesh in the area of ​​the stone, where later also the larva of the cherry fruit fly is found, becomes soft.

In infested fruits you will find the small, up to six millimeters long, white maggot. The fully developed larva bores out of the fruit and drops to the ground, where it pupates in the top soil layer and overwinters.

The cherry fruit fly finally hatches between mid-May to the end of June. After ripening, the females lay their eggs in the cherry fruit under the fruit peel again. This happens as soon as cherries turn from green to yellow and the cycle begins again.

Combat the cherry tree fly

Fight cherry fruit fly: cherry

Fruit flies are especially annoying.

With maggots infested cherries should be picked from the tree, picked up and destroyed. An over-persistence of the larvae and dolls in the soil can thus be at least partially prevented. To prevent it, you should harvest the trees early and completely.

In the house and allotment no pesticide is currently approved for controlling the cherry fruit fly. Direct control with insecticides is therefore not possible.

To detect the infestation earlier, can be used yellow glue boards. Effective control is not possible with them alone. Experts advise against the use of these traps in the field, as well as beneficial insects or small birds can touch the adhesive surface and die from the consequences.

If you are up for the Application of traps they should decide on the South side in the upper area the cherry trees are hung as soon as the fruits turn yellow.

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Video Board: European cherry fruit fly detected in Canada