Аңдатпа
ANNOTATION In the south-east of Kazakhstan, in the desert zone, the protection of saxaul from harmful organisms, including insects, is of great importance, preserving the only tree in the arid territory, helping to preserve its biodiversity. Based on the data obtained to clarify the species composition of harmful lepidoptera of saxaul and the study of their biological characteristics make it possible to develop measures to combat them. As a result of conducting field observations and studying the species composition of lepidopteran insects that damage the green shoots of the saxaul, we have identified a common species Bazaria atrisparsella Rag., belonging to the family Bazaria Rag. Malacosoma castrense kirghisicum, Anoristia atrisparsella (Rag.)., which feeds on the vegetative and generative organs of the saxaul. Related species of pests of the Lasiocampidae show a preference for saxaul, especially for the species Malacosoma, which is part of the Lasiocampidae. In the area of our research in the Ili depression (Balkhash, Kurtinsky districts, Almaty region), clusters of Lasiocampidae caterpillars were found in 2021-2023, the average number of individuals per tree was 2-3. Polyphage is one of the main pests of saxaul, showing the ability to consume many pasture plants. In addition, the harmfulness of the saxaul fireworm caterpillar is especially noticeable in early spring. At this time, they prefer to feed on newly growing shoots and flowers, which leads to the death of tree branches. Based on the results of the conducted research, the species composition of pests damaging saxaul, bioecological features were clarified and methods of pest control were determined and fumigants were tested on common species of– Malacosoma castrense kirghisicum and - Anoristia atrisparsella (Rag.).