In this article recommendations about use of biological preparations for pest control of fruit and berry crops are made. The characteristic of the following preparations is provided: Dendrobatsillin, Entobakterin, Lepidotsid.
Dendrobatsillin. Microbic insecticidal preparation of intestinal action. Let out it in the form of dry and being moistened powders which Ig contains respectively 30 and 60 billion viable dispute. Humidity of a let-out preparation – no more than 5 %. With water forms suspension. It is nontoxical for warm-blooded, fishes, bees and other useful insects.
It is most effective at an active food of an insect wrecker. The death of caterpillars depending on norm of a preparation comes not at once but only in 1 – 4 day after spraying, however damage of an intestinal path breaks ability of caterpillars to digest food, stops a food and consequently, reduces their injuriousness.
Warranty period of storage – 1 year from the moment of manufacturing. The preparation is necessary for storing in dry, protected from moisture penetration a room, at temperature not above 30 and not below – 30 °C. By the end of a period of storage it is allowed snizheyony titra to 20 billion in 1 g, but without reduction of biological activity.
The dry powder is recommended for spraying of fruit crops in vegetation. It apply against caterpillars 1 – the 2nd age of yablonny and fruit moths, geometrids, the browntail, a blackvein and a listovertka in norm of 60 – 100 g on 10 l of water. Term of the last processing – in 5 days prior to harvesting.
The being moistened powder is recommended for spraying of fruit crops in vegetation against caterpillars 1 – the 3rd age of yablonny and fruit moths, geometrids, the browntail, a blackvein, a listovertka and other wreckers in norm of 30 – 50 g on 10 l of water. Carry out no more than two sprayings with an interval of 7 – 8 days.
Entobakterin. Microbic insecticidal preparation of intestinal action. Let out it in the form of a dry powder of the light gray or whitish color consisting from dispute and albuminous crystals of entopatogenny bacterial culture. 1 g entobakterina contains not less than 30 billion viable dispute of bacteria and as much crystals endotoksina. Humidity of a let-out preparation – no more than 5 %. It is nontoxical for the person, warm-blooded animals, bees and other useful insects. Nefitotoksichen, doesn’t influence a smell and taste of fruits of the processed plants.
It is recommended for spraying of fruit crops in vegetation against caterpillars 1 – the 3rd age of yablonny and fruit moths, geometrids, the browntail, blackveins, a listovertok in norm of 60 – 100 g on 10 l of water. Thus apply 2 sprayings in 7 – 8 days. Term of the last processing – in 5 days prior to harvesting.
Stability of caterpillars of advanced ages to entobakterinu high therefore to use it against caterpillars is more senior than the 3rd age it is almost useless. High activity of a preparation on the processed plants remains within 8 – 10 days after spraying. Spraying carry out at evening or morning o’clock, but not during a rain and not at plentiful dew. An optimum interval of temperature for a primeneyoniya – 18 – 32 °C. At daily average temperature lower to apply 13 °C a preparation it is not recommended owing to very its low efficiency.
The warranty period of storage in dry, protected from influence of atmospheric moisture a room – at temperature isn’t higher 1 year 30 and not below – 30 °C.
Lepidotsid. The concentrated microbic insecticidal preparation of intestinal action. Let out it in the form of a powder of light gray or light-beige color. Titr viable dispute – 100 billion in 1 g. Humidity of a preparation – no more than 5 %. Malotoksichen and under condition of application in recommended norms of an expense is safe for the person and warm-blooded animals, bees and useful insects. Nefitotoksichen, doesn’t influence a smell and taste of the processed plants, it is possible to apply even in flowering and one days prior to harvesting.
Spray fruit crops against listogryzushchy caterpillars cheshuyekryly, except a plodozhorok, in emergence of caterpillars 1 – the 4th age of a yablonny moth, the geometrid, the browntail, a blackvein, unpaired and annulate silkworms, the American white butterfly, a rozanny listovertka in norm 10 – 20g on 10 l of water. Carry out 1 – 2 processings with an interval of 6 – 7 days. For fight against a yablonny plodozhorka fruit crops spray against each generation of the wrecker (3 processings with an interval of 7 – 14 days), norm of an expense – 20 – 30 g on 10 l of water.
The preparation is effective only under condition of an active food of insects by it. Depending on a dose of a caterpillar the damages put to an intestinal path perish in 1 – 4 day, however, break ability of caterpillars to digest write, stop their food and reduce damageability of protected culture to this term.
Store a preparation in the dry rooms protected from an atmospheric precipitation at temperature from 30 to – 30 °C. A warranty period of storage – 1 year.
(On magazine materials the House. Garden. Kitchen garden).