In article it is offered to use frogs for pest control of crops on fields instead of pesticides. For this purpose it is necessary to dig small reservoirs on fields. This non-polluting way increases profitability of production.
Scientists confirmed that fact that agricultural pollution of fields by pesticides and other products of chemical processing can reduce number of frogs.
It occurs because of hit in ponds and reservoirs yadoximikatov, tadpoles bringing to mass death and as a result – to reduction of total number of adult individuals that, in turn, promotes increase in quantity of insects wreckers which devour crops of crops. Unlike frogs, at insects immunity to yadoximikatam is easily developed, and they quickly enough cease to be susceptible to them. Generally, it concerns saranchovy wreckers.
The best solution of this problem – creation round agricultural fields of artificial reservoirs of the small size (roughly 20×30 meters, in depth – 2 meters) which quickly enough rummage the excavator, and taken-out soil leaves on alignment of hollows on other sites of farmlands or on other purposes.
Reservoirs easily also are quickly filled with water in a precipitation, in the spring because of a high water or at the expense of intake of ground waters from below. The next year these reservoirs will choose frogs, and their number will increase several times in this territory. As frogs are compelled to be nearby from the water environment, and reservoirs will surround the sowed fields, frogs will look for necessarily to themselves livelihood in these territories, eating insects wreckers and without allowing them to eat a crop of the grown-up cultures.
It is counted up that such number of frogs will allow to destroy as much insects of wreckers, as well as processing by chemicals. But, unlike the second option, won’t be neither costs of processing of fields, nor pollution of soils, excess of the content of pesticides in a final crop of the grown-up cultures, death of those animals which occupy the most important link of an ecological niche on fields. Besides, from available reservoirs it will be possible to receive the income in the form of industrial cultivation of a carp and a crucian, and also to use them as fire-prevention sources of water that is especially actual in the rural zone where firefighters come to get warm only on coals.
(On Niva magazine materials).