Open AccessDELPHINIUM LEPTOCARPUM NEVSKI AND DELPHINIUM PARADOXSUN BGE AS POTENTIAL SOURCES FOR PEST CONTROL IN CEREALS AND LEGUMES
Author(s) -
С. М. Тураева,
U. Kh. Kurbanov,
E. Kurbanova,
S. Allakulova
Publication year - 2020
Publication title -
evrazijskij soûz učenyh/evrazijskij soûz učënyh
Language(s) - English
Resource type - Journals
eISSN - 2413-9335
pISSN - 2411-6467
DOI - 10.31618/esu.2413-9335.2020.2.79.1042
Subject(s) - pest analysis , biology , toxicology , sitophilus , horticulture , delphinium , pesticide , rice weevil , weevil , botany , agronomy
In the present study, the insecticidal activity of plant extracts from the aerial parts of Delphinium leptocarpum Nevski and Delphinium paradoxsun Bge against two major important legume insect pests, cowpea weevils (Callosobruchus maculates) and the rice weevil (Sitophilus oryzae), was studied. According to the screening results, the insecticidal toxicity of the chloroform extract of plant D. leptocarpum N. showed LC50 value of 0,70 mg / mL for adult C. maculates, 0,81 mg / mL for S. oryzae, respectively. The toxicity of the alcoholic extract of D. paradoxsun B. is LC50 0,35 mg / mL for adult C. maculates, 0,39 mg/ mL for S. oryzae, respectively. Exposure to the chloroform extract of D. leptocarpum N. at concentration of 5-10 mg / mL for 24 hours resulted in 83.0100% mortality. After 48 h exposure, the pest mortality was 100%. Under the influence of an alcoholic extract of D. paradoxsun B. at dose of 5-10 mg /mL, the mortality of pests reached 99-100%. The probable use of extracts of D. leptocarpum N. and D. paradoxsun B.as bioinsecticides is discussed here.