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International Conference on

Recent Trends in Environmental Sustainability

ESCON22/SAgri/11
Evaluation of pesticidal activities of Lantana camara against Tribolium confusum and its
comparison with synthetic insecticide cypermethrin

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Haroon Ur Rashid , Seema Tahir , Muhammad Rizwan Amjad , Abdul Khaliq , Adnan
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Amjad* , Maheen Fatima , Muhammad Aqil Qureshi , Sehrish Kanwal , Muhammad Farhan
Somro 2
1 Department of Zoology, Karachi University Campus, Karachi, Pakistan
2 Pest Warning and Quality Control of Pesticides Punjab, Lahore, Pakistan
3 Instiute of Food Science and Nutrition, Bahauddin Zakariya University Multan
4 Department of Entomology PMAS Arid University of Agriculture, Pakistan
Correspondence: adnanamjad@bzu.edu.pk
Abstract
Tribolium confusum is a notorious insect pest that destroyed a huge number of stored
commodities at the storage level.There is a need to find a naval, easily degradable and eco-
friendly replacement of conventional insecticides to control insect pest in stored grains. The
toxicity, residual toxicity, repellency and progeny effects of the plant extract Lantana camara
were compared with synthetic insecticide cypermethrin against T. confusum. Five different
concentrations of plant extracts (1%, 1.2%, 1.4%, 1.6%, 1.8%) were checked in each
experiment. Synthetic insecticide was applied at concentrations (0.0625%, 0.0313%, 0.0156%,
0.0078%, 0.0039%) in each bioassay. In toxicity bioassay, the LC50 of cypermethrin and L.
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camara were calculated to be 6.1µg/cm and 298.8 µg/cm after 24 and 48 hrs, respectively.
Maximum mortalities were recorded, 92.8% and 64.2% for cypermethrin and L. camara,
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respectively, against T. confusum. Residual toxicity of cypermethrin (12.5 µg/cm ) produced
percent mortalities 86.21%, 89.66%, 48.28%, 31.04% and 10.35% while for L. camara at dose
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of 358.5 µg/cm were 44.83%, 48.28%, 41.38%, 31.04% , 13.79% respectively after 1, 2, 3, 4
and 5 days.In the repellency test,cypermethrin and L. camaraproduced percent repellency of
73.3% and 66.7% respectively after 5 hrs. In contrast, the fecundity effect at LC50 dose
inhibited 77.16% and 67.8% insect emergenceafter 42 days. Current research showed that plant
extract plays an important role in the management of T. confusum. The tested plant effectively
controlled the pest and suggested using against stored products insect pest as a part of integrated
pest management.

Keywords:T. confusum, L. camara; Mortality; Repellency; Fecundity

Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus

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