In article wreckers and diseases of grain, commercial, field, fruit crops and grapes are listed. Their injuriousness and methods of fight against them is shown.
The FORECAST of DEVELOPMENT AND DISTRIBUTION of the MAIN WRECKERS AND DISEASES of Agricultural CULTURES IN FARMS of the CRIMEA IN JUNE, 2006
Dry hot weather in June, with existence of a precipitation in I-Sh to decade will promote active development of wreckers and diseases in Autonomy farms.
Mnogoyadnye wreckers. To Posostoyany for May 29 in farms of May Day, Belogorsky areas the beginning of an otrozhdeniye of larvae of Italian prusa is noted. The universal otrozhdeniye of larvae of the wrecker will proceed during the whole June. At identification of 8-10 pieces/larvae on sq.m it is necessary to hold destructive events. As at dry hot weather, without any precipitations, education kulig locusts and movement them on fields of cultural plants is possible.
Weather conditions of May developed favorably for development of a meadow moth. Weak years of the wrecker by number of 1-2 butterflies on 10 steps it is noted on weeds in the Black Sea area. At identification of the centers by number of 7-10 butterflies on 10 steps it is necessary to hold destructive events.
Years winter scoops, an otkladka of its eggs, an otrozhdeniye of caterpillars it is expected at the end of the II decade of June.
Within a month injuriousness of provolochnik and lozhnoprovolochnik in crops of winter, propashny, vegetable crops will proceed.
In corn crops in a phase of 3-7 leaflets it is expected mass years and a yaytsekladka of a corn moth. When settling 17-18 % of plants it is necessary to provide protective measures a biological or chemical method.
Wreckers and diseases of grain crops. In crops of grain crops a food, an otkladka of eggs, an otrozhdeniye of larvae of a bug of a harmful cherepashka everywhere will proceed. Injuriousness of the wrecker will proceed till the end of harvesting, and then – on a current.
The exit of grain bugs in crops of grain crops is expected at the end of 1 decade of June. They will eat away and vymolachivat grain; females will start a yaytsekladka in 10-12 days.
Within a month injuriousness of bugs and larvae of a pyavitsa krasnogrudy in crops of winter and summer crops will end. Most their strong injuriousness is expected on oats.
Years and the otkladka of eggs of the Swedish fly will be observed all month on summer cultures.
Warm damp weather promotes settling of grain crops by a cereal plant louse.
In June injuriousness tripsov, grain pililshchik before harvesting will proceed.
The exit of bugs of new generation of the grain ground beetle is expected during the period naliva the corn. Adult bugs roughly will eat round and beat out grains from ears in the evening. After harvesting the wrecker will leave in summer diapauzu.
Weather conditions of June will are favorable for development of diseases: root gnily, brown sheet spottiness, brown sheet rust, septorioza, mealy dew, dusty golovni. At temperatures above 250S and existence of a precipitation manifestations of diseases on an ear, such as are possible: olive mold, fuzarioz, septorioz.
Long-term herbs, commercial crops. On a beet, in crops of a rape sveklovichny and krestotsvetny flea beetles, rape cvetoed will continue injuriousness.
And soya crops within a month will be harmed by klubenkovy weevils, a lyutsernovy bug, plant louses, caterpillars a scoop and ognevka.
In crops of peas will continue injuriousness of a plant louse, pea komarik. Settling by a pea zernovka, a plodozhorka, an akatsiyevy ognevka everywhere is expected.
On long-term herbs injuriousness fitonomusa, tixiusa, a lyutsernovy bug and other wreckers is expected.
At high humidity of air on commercial crops development perenosporoza, a brown sheet spottiness is expected.
Wreckers and diseases of vegetable cultures. Vposadkakh of potatoes and other paslenovy cultures larvae of the Colorado beetle will continue to harm. The first summer its generation is expected at the beginning of the II decade of June. Protection of crops of potatoes should be begun when settling by larvae of the I-II age of 5 % of plants by number of 10-20 larvae on a bush, preparations: Aktara 25 century of, 0,06-0,08¬ú/hectare, Konfidor, v.r.k., 0,2-0,25 l/hectares, Mospilan of 20 % for genitive, 0,02-0,025 kg/hectares, Bankol, 50 % s.p.0,2-0,3 kg/hectare.
On early, average cabbage, semennik of krestotsvetny cultures plant louses and krestotsvetny flea beetles on cabbage, during the whole month – a cabbage fly, white butterflies, scoops will continue to develop and harm.
In June larvae of an onions fly, tripsa, and on cucumbers will continue to harm crops of onions, vegetable marrows manifestation perenosporoza, a bacteriosis, mealy dew is expected. The onions can suffer from lozhnomuchnisty dew.
Wreckers and diseases of fruit crops and grapes. Otrozhdeniye of caterpillars of the 1st generation of a yablonny plodozhorka in farms of our republic, depending on areas, began at the end of May and proceeded in the first five-day week of June.
Everywhere continues an okuklivaniye of caterpillars and years a listovertok.
During the whole month in gardens of the Crimea injuriousness of fruit moths will proceed, pincers, geometrids, a silkworm, a plant louse, the otrozhdeniye of vagabonds of the Californian shchitovka in the Crimea is expected at the end of the first decade of June. The mass otrozhdeniye of caterpillars of ABB, roughly in the conditions of the Crimea is expected in the second decade of this month.
Everywhere on a cherry, sweet cherry will continue vredonosit larvae of a cherry fly.
Aggression of development and distribution of mealy dew, parshi, klyasterosporioza, kokomikoza kostochkovy, kurchavost of leaves of a peach will depend on hydrothermal factor.
For predotvrashcheniye of epifitotiyny development of diseases in gardens it is necessary to hold in them planned complex protective events, combining insecticides with fungicidami, resolved by "List"…
On vineyards injuriousness of caterpillars of a grozdevy listovertka of the first generation, a web tick and grape zudnya will be observed. From diseases it is necessary to expect manifestation mildyu, oidiuma.
V. Permyakov, chief of the State station of protection of plants, S. Kindruk, manager of laboratory of forecasts and diagnostics.