ABSTRACT: Cypermethrin 10 EC was applied in the tomato field following different doses and spray schedule to know the infestation of tomato by fruit borer Helicoverpa armigera Hübner (Lepidoptera: Noctuidae). The study also investigated the yield of tomato and benefit cost ratio of cypermethrin applied to control fruit borer. Results showed that the tested doses of Cypermethrin significantly reduced the infestation level of tomato and exerted higher yield. The lowest rate of fruit infestation (2.50% number and 1.92% weight) and the highest marketable yield (32.7 t ha-1) were obtained with Cypermethrin 10 EC @ 1 ml/L water sprayed at 45 days after transplanting and repetition of the same at 7 days interval. The highest marginal benefit cost ratio (6.6) was found with Cypermethrin 10 EC @ 1 ml l-1 of water sprayed after initiation of 5% level of fruit infestation and repetition of the same at 15 days interval.
Keywords: Insect, insecticide doses, Solanum lycopersicum, Helicoverpa armigera
DENGUE MANAGEMENT THROUGH MOSQUITO CONTROL: ASPHYXIATION TECHNIQUES AND HOMEMADE REPELLENTS FOR SKIN PROTECTION
USES AND ABUSES OF PESTICIDES IN BANGLADESH
PERFORMANCE OF MUNGBEAN WITH ELEVATED NPKS NUTRITIONS UNDER WATER STRESS
SYSTEM PRODUCTIVITY AND ECONOMICS OF INTERCROPPING Maize WITH SUGARCANE
GROWTH AND YIELD OF NEW AROMATIC RICE UNDER DIFFERENT LEVELS OF PLANT SPACING AND APPLIED FERTILIZER
INFESTATION RATE OF RICE WEEVIL ON SELECTED INDIGENOUS STORED GRAINS
ASSESSMENT OF KNOWLEDGE, ATTITUDE AND PRACTICE OF RURAL PEOPLE ABOUT ORAL AND DENTAL HEALTH
SOIL ORGANIC CARBON CONTENT ACROSS VARIOUS GEOMORPHIC UNITS IN MANGROVE FOREST: A CASE OF DUBLAR CHAR, SUNDARBANS
IMPACT OF COVID-19 PANDEMIC ON CULTIVATION OF MANGO
TOXICITY OF SOME INSECTICIDES AND THEIR SUBLETHAL EFFECTS ON NUTRITIONAL INDICES OF FALL ARMYWORM IN SWEET CORN PLANT
ELUCIDATING THE EFFECTS OF FORMALIN AS FOOD PRESERVATIVE ON GROSS AND HISTOARCHITECTURE OF VITAL ORGANS OF SWISS ALBINO MICE
TAXONOMIC ACCOUNT OF SOME CRAB-SPIDERS OF SOUTHWEST REGION OF BANGLADESH
EFFECTS OF ORGANIC MATTER AMENDMENTS ON PHYSICOCHEMICAL PROPERTIES OF SOIL AND YIELD OF RAINFED RICE
OCCURRENCE OF LEPIDOPTERAN POLLINATORS AND PESTS ON DIFFERENT CROPS AT GAZIPUR IN BANGLADESH
BIOFLOC TECHNOLOGY: AN INNOVATIVE APPROACH IN FISH NUTRITION AND HEALTHCARE
Ecology Journal © All Rights Reserved.
Developed by ToLearnTeam