A review on- Chemical attraction in between the Polygonum and its insects

Ujjwal Malik

A review on- Chemical attraction in between the Polygonum and its insects

Authors
Ujjwal Malik

Abstract
This review covers total chemical interaction between Polygonum plant and its associated insects. Most of the review studies focuses on chemical extraction from the polygonum and design the chemical structure or medicinal value. So, the actual ecological implication still yet to be studied. This article reviews the role of primary and secondary chemicals of an important weed, Polygonum (Polygonaceae) on the potential biocontrol agent Coleoptera: Chrysomelid. This review also presents how Secondary chemicals mainly alkanes, fatty acids & volatile compounds are more responsible for attraction of this coleoptera insects. Some are deterrent also. This interaction is highly species specific. Female insects are dependent for feeding and oviposition to polygonum plants. In this article, we review herbaceous weed Polygonum which is one of the major impediments of rice production in India, Bangladesh, Malaysia, and China. This weed is well adapted to wet-dry climate typical of tropical and subtropical regions because its above ground leaves is able to die off during Indian summer season, but it regenerates vigorously again between rainy and winter season. In North-eastern India, the weed shows its vigorous growth at the end of the rainy season when flowering is observed (September−October), which is influenced by a decrease in day length occurring in winter. Our main aim is that how single chemical compound or combined chemicals compound (extracted from polygonum plant) interact with the insects (mainly pologonum associated insects). Our focus is to develop the potential biocontrol agent. Because of Polygonum weeds are controlled in the rice-field by herbicide application and physical removal in India that is really tough job and also time consuming. So, finally the implication will be polygonum weed will be controlled by biological methods. That will be the future prospective of this review and also IPM strategy.

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