Organizing co mmittee

MEANS FOR PROTECTING LEGUMINOUS CROPS AND GRAIN 
PRODUCTS FROM PESTS 
 
S.M. Turaeva, P.A. Nurmakhmadova, F.A. Zulpanov,
B.J. Elmurodov, S.B. Allokulova 
 
S.Yu. Yunusov Institute of the Chemistry of Plant Substances Academy of sciences of the 
Republic of Uzbekistan st. Mirzo-Ulugbek, 77, 100170 Tashkent 
e-mail: [e-mail] 
One of the dangerous pests of leguminous plants is the cowpea seed beetle 
(
Callosobruchus maculates 
F.) and the pests of grain products and seeds is Khapra 
beetle (
Trogoderma granarium
), which damage the plant generative organs, and its 
harmfulness constantly increasing. 
C. maculatus 
develops on pea seeds, various legumes, chickpeas, cowpea, 
chickasano pea, and other legumes, with the exception of soybeans and beans. India 
produces around 12.65 million tons of pulses per year and nearly 8.5% of this is lost 
during post harvested handling and storage
Khapra beetle infestation can spoil other valuable trade goods and threaten 
significant economic losses if introduced to a new area. Handling or consuming 
contaminated grain and seed products can lead to health issues such as skin irritation 
and gastrointestinal distress. It is considered one of the 100 worst invasive species in the 
world.
Infestations are difficult to control because of the insect's ability to survive 
without food for long periods, its preference for dry conditions and low-moisture food, 
and its resistance to many insecticides.
Wide spread and economic damage to pests of leguminous crops and grain products 
is a pressing issue in agriculture. 
C. maculates
and 
T. granarium
cause great harm to 
leguminous crops in Uzbekistan. 
The aim of our work was a comparative assessment of the insecticidal activity of 
derivatives of quinozolin-4-on hydroxlorides relative to imago 
C. maculates
and 
T. 
granarium
Compounds based on quinozolin-4-on hydroxlorides, which have insecticidal activity 
have been synthesized at the Institute of Chemistry of Plant Substances of the Academy 
of Sciences of the Republic of Uzbekistan.
The derivatives of quinozolin-4-on hydroxlorides were evaluated for insecticidal 
activity on 
Callosobruchus maculates
and 
Trogoderma granarium
, an important insect 
pest of leguminous crops. At the end of the experiment, recorded mortality was 96.6%-
89.5% at the 1.0 mg/ml and 0.1 mg/ml concentration of 3-propilquinozolin-4-on 
hydroxlorides used for imago
C. maculates
insect. Efficiency of 3-propilquinozolin-4-
on hydroxlorides at the 1.0 mg/ml, 0.1 mg/ml and 0.01mg/ml after 24 h. exposure was 
76.0%, 69.5% and 48.0% against 
T. granarium
. 
Based on the results of screening studies, it was found that the biological 
effectiveness of 3-propylquinozolin-4-one hydrochlorides, 3-isoamylquinozolin-4-one 
hydrochloride at concentrations of 1.0 mg/ml and 0.1 mg/ml was higher in relation to 
the 
C. maculates
than to the 
T. granarium
. 
It is recommended to continue further field studies of the synthesized substances 
quinozolin-4-on hydroxlorides for insecticidal activity and to study it in detail. 

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Poster presentation 
290