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Several efforts have been made to develop, verify, demonstrate and document
location specific IPM technologies suited to different ecosystems. Since IPM is a dynamic
process, therefore, it needs continuous up gradation of the technology as per the changing
pest scenario. target of increasing the productivity levels to meet the future demand, it
requires adoption of modern and intensive agricultural practices by the farmers. However,
concomitant with the practice of intensive agriculture, there is aggravation of biotic
constraints like insect pests, diseases and weeds. More than 100 species of insects have been
recorded as pest of rice, of which about a dozen are of significance in India. The co-ordinated
network trials conducted at different centres in India have indicated that controlling of insect
pests alone increase yield by around 1 ton /ha. The diseases of rice accounts for about 10 %
loss in rice production annually or approximately 2.5 million tons. Even if the average loss
caused by rice disease in a year were to be only 5 % of the total rice production in the
country, it would amount to a great deal, and prevention of such a loss should constitute one
of the important methods of augmenting our food security.
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