Express method of accounting and forecasting brown-tail moth (Euproktis chrisorrhoea l.) in forest and garden plantations
DOI:
https://doi.org/10.28983/asj.y2019i5pp14-17Keywords:
brown-tail moth, winter nests, express accounting method, forecastAbstract
The biological peculiarities of brown-tail moth, a dangerous pest of many tree and garden plantings, were studied
in order to develop a rapid method for obtaining sufficiently
fast and reliable accounting and forecasting data. A comparative description of the existing methods of accounting of
brown-tail moth in forest plantations and in garden ones has
been carried out. It has been established that the accounting methods adopted in production are devoid of statistical
justification and data on the size and number of accounting
units. It is shown that the most informative indicator for obtaining data on the population of stands is the development
of phytophage at the caterpillar phase in winter nests. Mass
counts of winter nests with a simultaneous estimate of the
number of caterpillars in them and the degree of nibbling
of plantations made it possible to identify the relationship
between these values. Tables for quick determination of the
required sample size with three levels of accuracy are developed. A table establishing the number of pest larvae depending on the size of wintering nests has been developed. A
model that allows predicting the degree of expected damage
to plantings by a pest has been obtained.
Downloads
References
2. Дубровин В.В. Организация защиты растений от вредных организмов. – Саратов, 2016. – 388 с.
3. Дубровин В.В. Совершенствование методов учета и прогноза в системе мониторинга за кольчатым коконопрядом (Malacosoma neustria L.) в защите древесных растений // Аграрный научный журнал. – 2016. – № 3. – С. 26–28.
4. Контроль за фитосанитарным состоянием посевов сельскохозяйственных культур в Российской Федерации / В.Т. Алехин [и др.]. – Воронеж, 1988. – 335 с.
5. Массовые хвое- и листогрызущие вредители леса / С.Г. Гамаюнов [и др.]. – Харьков , 1999. – 172 с.
6. Надзор, учет и прогноз массовых размножений хвое- и листогрызущих насекомых / А.И. Ильинский [и др.]. – М.,1965. – 524 .
