In article wreckers and diseases of grain, vegetable and fruit crops which should be expected in June, 2007 are listed. Recommendations about fight against these wreckers and diseases are made.
Short forecast for June, 2007
in farms of the Crimea in June, 2007
Mnogoyadnye wreckers
On pastures, heathlands in forest belts the otrozhdeniye and a food of larvae of Italian prusa, not gregarious types a kobylok will proceed. Development of the wrecker becomes more active at establishment optimum for saranchovy temperatures 25-30os. Emergence of the centers with high number of Italian prusa and other saranchovy crops on crops which border on places of their reservation is possible. Protective measures against these wreckers carry out at mass emergence of larvae 1-3 age number of 2-5 pieces/sq.m – Italian prusa, not gregarious – 10-15 pieces/sq.m. Apply Detsis k.e., Shtefesin to … e. – 0,4-0,5 l/hectares, Kinmiks k.e. – 0,3-0,4 l/hectares, Mospilan of genitive – 0,05-0,075 kg/hectares, Sumi-alfa k.e. – 0,4½/hectare, Fastak k.e. – 0,2 l/hectares and other preparations.
In crops of winter, summer grain and propashny crops will continue the harm of a larva shhelkunov and a chernotelok.
Within June the yaytsekladka, an otrozhdeniye and a food of caterpillars, podgryzayushchy a scoop proceeds on crops of years. Ochazhnoye development is possible in crops of vegetable and other propashny cultures.
At achievement of 5-7 leaves on corn it is expected years and a yaytsekladka of a corn moth. For reduction of its number and injuriousness, fight against weeds, interrow loosening, and also release trixogrammy are effective in the beginning and during a mass otkladka of eggs. When settling by eggs of the wrecker of 17 % of plants of corn we recommend to carry out spraying of crops by preparations: Detsis k.e. – 0,5-07 l/hectares, Karate k.e., Zeon’s karate k.s. – 0,2½/hectare, Sherp k.e. – 0,32 l/hectares.
Wreckers and diseases of grain crops
Bug harmful cherepashka
In crops of winter and summer grain crops in a kolosheniye, flowering of plants and naliva grains injuriousness of a bug a harmful cherepashka will proceed.
Grain bugs
Within a month it is necessary to expect mass moving in crops of grain grains of grain bugs.
Pyavitsa krasnogrudy
For June will continue the food of a larva of a krasnogrudy pyavitsa. The greatest injuriousness is expected in crops of summer grain crops.
Will continue injuriousness on the grain: cereal plant louses, tsikadka, wheaten trips, cereal flies, stem grain flea beetles.
Availability of drop moisture (an intermittent rain, morning dews) and moderate heat will promote development and distribution of mealy dew, septorioza, a brown sheet rust, a brown sheet spottiness. During the period naliva an ear at temperature 28-300C and availability of drop moisture possibly development fuzarioza, septorioza and an olive mold.
Long-term herbs, commercial crops
Plant louses, scoops, flea beetles and a pililshchik within a month will continue the injuriousness on a rape. At moderate temperature and the increased humidity of air it is necessary to expect distribution peronosporoza, fomoza, gnily.
On flax, mustard linen and krestotsvetny flea beetles, linen trips will continue a food.
In areas of cultivation of a beet injuriousness of sveklovichny flea beetles, weevils, the provolochnik mining moths, plant louses, shhitonosok and a scoop will proceed.
In dry hot weather on a beet it is necessary to expect development of mealy dew. Differences of a temperature mode and availability of moisture will promote manifestation and development peronosporoza, cerkosporoza, development alternarioza is possible.
Wreckers and diseases of vegetable cultures and potatoes
Within a month the otkladka and an otrozhdeniye of larvae of the Colorado beetle in landings of tomatoes, an eggplant and potatoes will proceed. Potatoes protect from the Colorado beetle at mass emergence of larvae 1-2 age. For fight against a bug we recommend to use preparations: Mospilan of 20 % for page of item of 0,02-0,025 kg/hectares of 20 % of page of the item – 0,02-0,025 kg/hectares, the actor of 25 % of century of – 0,06-0,08 kg/hectares, the Goal-scorer, century of of 0,045-0,05 kg/hectares, Vanteks of 60 % mk.s. – 0,07 kg/hectares, Dursban of 48 % - 1½/hectare and other preparations resolved the List …
Everywhere in landings of cabbage will continue the development and injuriousness a complex of such insects, as: krestotsvetny flea beetles, cabbage fly, white butterflies, plant louses, moths, scoops, ochazhno bugs and barite.
Within a month from diseases on vegetable cultures development makrosporioza, fitoftoroza, a bacteriosis, peronosporoza is expected.
Wreckers and diseases of fruit crops
Injuriousness of caterpillars of a yablonny plodozhorka is expected during the whole June. Injuriousness of sucking insects (plant louses, pincers, deaf adders, shchitovka, lozhnoshchitovka) will proceed. Will continue a food and development the gray pochkovy weevil, the brent, a bukarka; caterpillars of silkworms and a yablonny moth will finish a food and will pupate; young bugs yablonny cvetoeda will damage leaves and fruits; also it is necessary to expect in the first decade of mass summer and an otkladka of eggs of the American white butterfly, development of larvae of a cherry fly on averages and late grades of a cherry and sweet cherry.
Warm rainy weather will promote intensive development parshi apple-trees and pears, klyasterosporiozu, kurchavost of leaves of a peach, and hot – mealy dew, moniliozu and other diseases.
On vineyards in June on inflorescences a food of caterpillars of a grozdevy listovertka of the first generation will be observed. Number and injuriousness of pincers will increase at hot dry weather. Development and to distribution mildyu, will promote gray decay, a black spottiness warm damp weather, hot and dry – oidiumu.
V. Permyakov, chief of the State station of protection of plants, Century. Garden, leading agriculturist.