Scientific Bulletin of Namangan State University


Раnaрhis juglandis is fed a lot on the young shoots of walnut trees, it accumulates a lot even at the ends of the green branches, along with the fact that it occupies the leaves. In some cases, it causes the plant to dry out. Раnaрhis juglandis the 1-th spring uptrend of the quantitative density occurs on the account of 3-4-th syllable larvae, 2-th autumn ascent occurs on the account of 9-11–th syllable larvae. According to the results of mathematical statistical analysis of seasonal variations in the quantity dynamics of walnut aphides, there is an increase in the number dynamics of individes in the Central low plane and Foothill regions by two in the approximation lines.

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