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ABSTRACT: The study was conducted from September 2019 to December 2020 to know the effects of the new generation insecticides, Virtako 40WG (Chlorantraniliprole and Thiamethoxam) and Coragen 18.5SC (Chlorantraniliprole) on the infestation of rice yellow stem borer (Scirpophaga incertulas) and dark headed stem borer (Chilo suppressalis) and yield of rice. The insecticides with concentrations 0.1, 0.5, 2, 10, 50 and 200 ppm were applied along with an untreated control. Rice plants were cultivated in the experimental field of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh. All doses of the insecticides resulted significantly lower level of plant infestation. Virtako 40WG and Coragen 18.5SC at concentrations of 200 ppm showed the lowest levels of dead heart (3.0% and 2.0%, respectively) and white head (2.7% and 2.2%, respectively) symptoms. All the doses of the insecticides produced significantly the higher yield of rice compared to untreated control and the dose 200 ppm produced the highest yield.
Keywords: Aman rice,Chilo suppressalis, Coragen 18.5SC, Scirpophaga incertulas, Virtako 40WG.
DESCRIPTION OF A NEW SPECIES OF ALLOTROPA FÖRSTER 1856 (HYMENOPTERA: PLATYGASTRIDAE), AN ENDOPARASITOID OF THE CASSAVA MEALYBUG
EXPLORING SELECTED MICROBIAL PESTICIEDES AGAINST SUCKING PESTS OF BRINJAL
DOCUMENTATION OF INSECT PEST ATTACK AND PESTICIDE USAGE ON NEW PLANTATIONS OF COFFEE (COFFEA SPP.) IN SYLHET
ASSESSMENT OF ADULTERATION IN DIFFERENT MARKETED BRANDS OF COMMONLY USED PESTICIDES IN BANGLADESH
CHECKLIST AND TAXONOMIC KEYS TO THE LEAFHOPPER AND PLANTHOPPER OF RICE BASED AGROECOSYSTEM IN BANGLADESH
EVALUATION OF DIFFERENT BIO-PESTICIDES AGAINST RUGOSE SPIRALING WHITEFLY INFESTING COCONUT CROP UNDER FIELD CONDITION
RESPONSE OF BENEFICIAL ARTHROPODS TO INSECTICIDES; USED FOR THE IPM MODULE AGAINST COTTON JASSID (AMRASCA BIGUTTULA BIGUTTULA ISHIDA)
INCIDENCE AND DAMAGE SEVERITY OF PINK HIBISCUS MEALYBUG, MACONELLICOCCUS HIRSUTUS INFESTING ORNAMENTAL PLANTS
FARMERS’ KNOWLEDGE OF INSECT PESTS IN BOTTLE GOURD (LAGENARIA SICERARIA) AND THEIR MANAGEMENT PRACTICES IN MAJOR BOTTLE GOURD PRODUCING DISTRICTS OF BANGLADESH
OPTIMIZATION OF REARING PROTOCOL FOR EGG AND LARVAL PARASITOIDS WITH THEIR ASSOCIATED HOSTS AND EVALUATING THE EFFICACY OF BRACON HEBETOR AGAINST FALL ARMYWORM IN MAIZE
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