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Mosquitoes are one of the most important insect pests that affect the health and well being of humans worldwide.They are vectors for malaria, filaria, Chikungunya and dengue which are associated with high mortality and morbidity in Asian and African countries. Use of insecticides have lead to resurgence, adverse environmental effects and negative impact on human health. Biocontrol of mosquitoes is an environmentally friendly option and involves the use of biologically active plant extracts and other measures for their effective control. Extracts from Calotropis procera are reported to be...

Fish are commonly used in pollution monitoring as they are widely distributed in aquatic environments, bioaccumulate toxic substances and respond to low concentrations of environmental pollutants and mutagens. They are good bioindicators of aquatic contamination and have been adopted as the sentinel organisms. Labeo rohita is one of the Indian major carps that is economically important as a food fish. Among various heavy metals responsible for aquatic pollution, zinc which is widely used in industries is a significant cause for freshwater pollution. Fish growth, behaviour, respiration and...