Abstract
One of the primary tasks of modern biology is to identify ways of forming the resistance of cultivated plants to diseases and pests. Analysis of the history of development and change of ideas about the nature of plant resistance indicates that the search for sources of immunity was subconsciously carried out by ancient farmers simultaneously with domestication. However, human competition with pests and pathogens of the grown plants as a source of nutrition is not complete and has no chance to end in the foreseeable future. The aim of the research was to develop the ways to use exogenous biologics that provide stimulation of fruiting and growth processes to protect fruit and small fruit crops and indoor plants from pathogens and harmful insects by immune system stimulating plants themselves, without the use of environmental polluting pesticides. The objectives of the study were to analyze publications on plant immunity; study of the influence of aqueous solutions of para-aminobenzoic acid, including in combination with other biologics. The experimental part of the research had been conducted in 2008-2016 in the experimental orchards of the North Ossetia-Alania (Russia) and Central Ukraine, in the atrium of Baltschug Kempinski Hotel (Moscow, Russia) and in the garden of marble sculptures of the House of Scientists of NDP Sofiyivka (Ukraine). The general state of the treated with biologics and control plants, as well as damage to the most common pathogens and pests had been evaluated. The average incidence of the treated with biologics fruit crops decreased from 48.6% to 8.2%, and small fruit crops, from 54.8% to 7.8%, while insect damage decreased from 36.4% to 9.2% (fruit crops) and from 42.1% up to 8.0% (small fruit crops). A decrease in ornamental qualities had not been observed in the experiment with the treatment of indoor plants in both test items. The accumulated information gives grounds to consider immunity, including one induced by such biologics as PABA, Kornevin, Phytoverm and Zircon, as an important link in the anthropo-adaptive complex.
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