MITES AND SPIDER.pptx - MITES AND SPIDER PROF DR ISA IPOR...

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MITES AND SPIDER PROF DR ISA IPOR
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MITES (AND OTHER SPIDER-LIKE ARTHROPODS) Importance to agriculture and public health Absence of wings, Antennae and distinct head development – head and thorax are joined (Cephalo-thorax), together with a usually unsegmented abdomen, form an oval body. Only in spiders does a narrow constriction exist between the cephalothorax and abdomen
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SPIDERS All spiders are predaceous and many feed on insects. Spiders from family Lycosidae play an important role in regulating the population of plant-leaf-hoppers in rice . Sting of certain spiders may be painful, poisonous and hazardous to main
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TICKS Usually parasites of mammals and birds, their bite is injurious and may trigger serious reactions in the hosts. Ticks may transmit serious diseases to man also.
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MITES Small, soft-skinned organisms with a chitinous skeleton. They occur almost everywhere as scavengers, parasites of plants and animals or as predators.
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