In article the forecast of distribution and development of the main wreckers and diseases in crops of winter crops for March, 2009 is given. Untimely carrying out protective measures against diseases and wreckers can bring to a yield loss.
According to hydrometeorological service, the spring is expected early and
According to hydrometeorological service, the spring is expected early isukhy that will be to a sposobstvovatvozobnovleniye of vegetation of crops of winter crops, and also the beginning of injuriousness of wreckers and diseases in March.
With air temperature increase above 0oSlichinki the grain ground beetle will rise in the top layers of earth will renew a svoyuvredonosnost in crops of winter grain crops. An active universal food of larvae as the bulk of the wrecker is in the second age, and in such areas as Razdolnensky is expected, Black Sea the first age meets also. Protective measures should be carried out at number of 0,5-1 copies/sq.m.
Further injuriousness of myshevidny rodents will proceed. Therefore for the purpose of preservation of a crop winter 2009 we recommend to carry out constantly continuous inspections of agricultural holdings and at achievement of threshold number 3 ¬½./hectare to hold protective events preparations of Rodonfos, Brodisan, Ratindan, Storm briquettes.
At the end of the month in crops of winter crops in the central part of the Crimea ochagovy injuriousness podgryzayushchy a scoop is possible.
For carrying out protective action it is considered to be an economic threshold of injuriousness existence of 2-3 caterpillars on sq.m. In fight against scoops it is possible to use the following preparations: Diazinon, Diazol, Sherp, Arrivo.
Favorable conditions of rewintering of the collected infection, differences of a temperature mode in March will promote universal manifestation of mealy dew, septorioza, gelmintosporioza in crops of grain crops. Probably ochazhny manifestation root gnily, askoxitoza, brown sheet rust.
For improvement of plants and the soil in difficult situations at temperature +7 °-+ 4°S it is necessary to use Fundazol, at temperature +16 ° + 18°S to apply preparations: Rex Duo, Bayleton, Impakt, etc. In other cases we urgently recommend to carry out preventive processings of crops fungicidami in introduction of herbicides. Untimely carrying out protective measures can bring in fight against diseases to loss to 30 % of a crop.
V. Permyakov, chief of the State inspection of protection of plants.
S. Kindruk, deputy chief, head of department of forecasts and diagnostics.