If on the ripened fruits of cherry or sweet cherry there were cavities or poles, berries have darkened and have begun to fall down, the plant is exposed to the attack of cherry fly. Fortunately, it is possible to get rid of this misfortune.
Features of fight against cherry fly
Begin to struggle with this little wrecker in the early spring when snow descends and the soil dries up. The fact is that dolls (pupariya) winter in the soil at depth of 5-7 cm therefore to get rid of the wrecker, recommend to dig over the soil and manually to choose dolls (it is simple to notice them: they bright yellow color, in length reach 4-5 mm) and also to bring soil insecticides. "Stormbreaker", "Medved-toks", "Mruvko-Bayt" and "Prestige" are especially effective in this case, dissolve them in water (proportions are specified in the instruction) and spray with solution the earth around the struck plant.
When cherry or sweet cherry fades, watch closely summer of the flies who have appeared from wintering in the soil pupariyev. For this purpose construct cage trap: from boards (length – 1 m, width – 17-20 cm) force down bottomless box, one of the parties of which cover with the gauze put in 2-3 layers. Further the cage is established near tree which has undergone the attack of cherry front sight (the open party of cage has to be located at the earth). After that spray trees of average and late grades with toxic chemicals: "Pyrethrum", "Anabazin-sulfatom", "Fluorsilicate sodium", "Parisian greens" or soap emulsion. But it is necessary to remember that the first spraying is carried out only when the earth is already rather heated-up, and air temperature reaches +18os.
Repeated spraying is carried out in 13-15 days after the first procedure, but not later than 2 weeks to harvesting. For processing of trees it is possible to use the following insecticides: "Karate", "Lightning", "Spark", etc. It is important to alternate the used medicines (it will prevent accustoming of the wrecker to the applied insecticides).
Trees of early grades cannot be sprayed with toxic chemicals.
After harvesting it is necessary to remove all fruit drop, for example, it is possible to dig it on half-meter deep into. Such action will prevent emergence of new larvae in the soil and their okuklivaniye. Along with cherry flies recommend to struggle with cherry plant louse as the wrecker eats its sweet allocations. Against plant louse it is possible to use wormwood decoction or soap solution. So, the last forms air-tight film under which the plant louse chokes.
National methods of fight against cherry fly
Instead of toxic chemicals in fight against this brown fly it is possible to use natural means. For example, take pine branch, fill in with water (3-4 l), bring to boiling and cook on small fire within 5-7 minutes. Broth is filtered and cooled. Spray with this fragrant "cocktail" trees and the soil around them.
In fight against the wrecker broths from onions peel, garlic and tobacco are effective.
Besides, the tobacco smell is unpleasant to this wrecker. Therefore take 1 kg of fresh or 370-400 g of dry tobacco, fill in 10 l of boiled water and insist within 22-24 hours. Then infusion is boiled hour, filtered and ostuzhivat. Ready means is parted with water (ratio 1:2) and spray with it crowns and the soil around.