Abstract only

More then hundred species of pests parasitize the cereal crops in Georgia, but only some of them are especially harmful. New methods of management were adopted with the establishment of privately owned small-scale farms. So, the quality of crop management advanced significantly in comparison with the one practiced at state-owned farms in the past. Rational usage of irrigation water, strict observance of sowing dates, pre-planting seed treatment, maintenance of the soil pre-sowing cultivation procedure etc. are the most important features of improved crop management. All these developments have resulted in some qualitative and numerical changes in specific composition of grain-crop biocenosis. Research data shows, that there are three dominating groups of grain-crop pest species different for their economic impact. The first is the group of species with the recently significantly increased population: Caliptamus italicus, Eurygaster integriceps, Chlorops pumilionis, Oscinosoma frit, Mogetiola destructor, Chloridea obsoleta. Populations of species of the second group have been recently stabilized (Cryllulus desertus, Ostrinia nubulalis, Lema melanopus). The third group incorporates the species populations of which have been slightly decreased over the last years (Toxoptera graminum, Agriotes gurgistanus). Despite of this differentiation, pests of all three groups can cause extensive damage to cereal crops. As it was ascertained by our research, in order to avoid radical damage, the recomenede crop growing technologies are offered for introduction at small-scale grain producing farms.

English

0409|AGRIS 0401|AL-Wheat Program

Juan Carlos Mendieta

CIMMYT Publications Collection