Abstract
Integrating supporting and regulating ecosystem functions provided by several components of biodiversity into cropping systems has been prepared as a promising way to decrease agrochemical inputs and negative environmental impacts while maximizing crop productivity and food security. The co-evolutionof plants and insects in very intriguing and plays vital role in the crop protection. Plants have developed efficient mechanisms to protect them against herbivore while insects have found diverse ways of avoiding negative effects of their host plant defense mechanism. Even though many workers have attempted to studyplant - insect interaction, still our knowledge is limited. A changing climate, growing pest have given uncertain impacts on crop protection so, the present study address the key question that Is it possible to find alternative to meet these challenges by studying the plant-insect interaction and formulating integrated pestmanagement? The study was conducted at Dharapuram, Dindugal district as this area is riched with the variety of crop cultivation. The study concludes that the biological control of insect pests with natural products by the development of new plant varieties with enhanced chemical defenses should be followed forthe better crop protection.
Highlights
In nature, most plants are fed upon by insects
Plants have developed efficient mechanisms to protect them against herbivore while insects have found diverse ways of avoiding negative effects of their host plant defense mechanism
A changing climate, growing pest have given uncertain impacts on crop protection so, the present study address the key question that Is it possible to find alternative to meet these challenges by studying the plant-insect interaction and formulating integrated pest management? The study was conducted at Dharapuram, Dindugal district as this area is riched with the variety of crop cultivation
Summary
Most plants are fed upon by insects. Plants are not passive by standers, as they have evolved resistance to most potential insect attackers [1]. Domesticated crops are inherently resistant to most insects [2]. The ancestors of modern‐day crop plants coevolved with insects and through natural selection accumulated many physical and chemical traits that formed a core defense against attackers [3]. Plant domestication and breeding involving selection for improved yield and quality has generally made crops more susceptible to pest damage [4]. The better understanding of this process will allow us to achieve more effective methods for the biological control of insect pests with natural products by the development of new plant varieties with enhanced chemical defenses [6]. A changing climate, growing pest have given uncertain impacts on crop
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