Root onion mite

Root onion mite - Rhizoglyphus echinopus R.etF. The most dangerous pests, damaging many species of onion and klubnelukovichnyh plants, as well as the dahlia and iris. Taking between the scales, he vgryzaetsya in the tissue, making moves, istonchaet stems. Bulb rot quickly and can not germinate. In the period of vegetation development of damaged plants is delayed, they are yellow, quickly infected with fungal and bacterial diseases and die.memory mattress |

Clamp light yellow color, brilliant, with korotkoovalnym body, the shoulder to the back end, up to 0,7-0,8 mm. Adult specimens have 4 pairs of legs, the larvae - 3. All stages of ticks are in the development of bulbs and under optimal conditions (temperature of 23-25 (C, humidity above 60%) completed in 25-30 days. In adverse conditions, formed a strong step - gipopus, in which the mite long time to remain viable. Distributed pest from the soil, plant material or postponed at the tools in the processing of land. In the flesh permeates through the stems or mechanical damage.

On the prevention end, after the tulips (and onion) at the site have grown resistant to pests: tagetes, Pyrethrum, delphinium, tomatoes, radishes.

Bulbs should be carefully excavated to view and delete all infected mites or suspicious. Then the seedlings should be protravlivat within 10-15 min in 0.3% solution by ragora or keltana, then dried and stored under normal conditions. You can intersperse bulbs with chalk, which sticks to the body of mites and they are dying from issusheniya. Before planting bulbs protravlivayut as usual. Good results gives the heat treatment: seedlings should be deleted for 5 min in water heated to 35-40 C.

If the mite is found during the growing season of plants, spraying 0.2% spend-ing solution keltana or ragora.