Виды основных вредителей маша повторного срока сева, их распространение

Mahmudova, Sh.

Виды основных вредителей маша повторного срока сева, их распространение | Species of Mung Bean Main Pests of Second Sowing Date, Their Distribution

2022

Mahmudova, Sh.

An overview of the species of the main pests of mung bean (Vigna radiata (L.) R. Wilczek) is given. The research was carried out in 2017-2019 in the fields of farms in the Tashkent region. Systematic analysis of species was carried out according to standard methods. Dispersion analysis of the obtained results was determined by the method of B. A. Dospekhov. 26 species of pests and 10 species of natural entomophages were identified, of which 5 species are the main ones (spider mites, turnip moth, cotton bollworm, alfalfa plant bug, southern cowpea weevil). The least damage to the culture is caused by 3 species of weevils: southern cowpea weevil (Callosobruchus maculatus (Fabricius, 1775)), pea weevil (Bruchus pisorum Linnaeus, 1758) and American seed beetle (Acanthoscelides obtectus (Say, 1831)). These pests infect mung bean culture up to 47.7-53.2%. The spider mite infects second sowing date mung bean twice as much as the main crop. The damage to the main crop amounted to 25.2-28.1%, and with the second sowing date — 48.1-49.7%. Based on the conducted research, it was concluded that the development of environmentally friendly, environmentally friendly methods of combating the main pests of mung bean in accordance with modern technologies is one of the most important tasks today.

Afficher plus [+]