Use some environmentally safe control factors in the fight against Sesamia cretica. Led (Phalaenidae: Lepidoptera).
Abstract
Laboratory experiments have been carried out on the effectiveness of some
environmentally safe control factors in the fight against the Sesamia cretica Led. For this
purpose, pesticide preparations are used: bacillus thuringiensis, Beauveria bassiana
mushrooms and pesticides of natural origin: Neem extract, Levo 2.4 LS, Matrixine Plus,
Actra and three different concentrations each, laboratory and field experiments were
completed during the spring and autumn 2019.
The results of laboratory experiments indicated that biopesticide preparations gave a kill
rate in the larvae of the corn stalk stalk s. cretica: 88%, 96% for each of the bacteria B.
thuringiensis mushroomB. bassiana respectively when used at 6 ml/l water when used in
direct spraying on larvae. Pesticides of natural origin gave a kill rate of 80%, 80%, 88%
and 100% for both neem, matrixin esauce, atara and livo, respectively, when used at 1ml
per liter of water when used in direct spraying on larvae. When using these factors in an
indirect treatment (larval food treatment), the results indicated that biopesticide
preparations decreased slightly compared to their direct spraying method on larvae and
reached: 64%, 72% for each of the bacteria B. thuringiensis mushroom B. bassiana,
respectively, Pesticides of natural origin have been effective: 68%, 96%, 100% and 100%
each for neem, livo, matrixen plus and alektara, respectively. From the results obtained
from the research, the above control factors can be used as part of an integrated control
program by controlling the S. cretica corn stem excavator after the completion of its fieldeffective test.
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