Ways of increasing the number of entomophages in nature.
2017
One of the most effective and ecologically safe means of decreasing the number of pests and the harm they do to agricultural plants is to increase the number of entomophages. The ways of increasing the role of entomophags are given in the work. One of them is sowing of nectariferous plants (buckwheat, fennel, mustard, rapeseed, parsley, sunflower, sainfoin, etc.) near crops and plants. The closeness of a forest has a favorable effect on the number of entomophages. Spraying of chemicals is known to significantly decrease the number of entomophages. Where pesticides need to be applied, it shall be carried out in reasonable periods; in particular, pests should be in sensitive phases (worm, mature phase), whuile entomophages - in endurable phases (egg, pupa). Tab. 3, Ref. 4.
Показать больше [+] Меньше [-]