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Tungro disease in rice

Friday 16 August 2013

Tungro disease symptoms are reduced tiller number and growth is stunted. Leaf blade and leaf sheath retracts. Young leaf blade that does not roll is clamped by the leaf midrib and leaves slightly twisted or curled. Leaf color turns yellow or reddish orange from the top of the old leaves. Young leaves may be spotted or striped pale green. Panicles infected plants are usually small and do not come out perfect. Grain-grain brown spots closed and weighs less than normal ears.

Infected rice plants usually live up to the ripening phase. Late flowering can cause harvest delays. Panicles are often small, sterile and imperfect existence. Plants infected parents may not cause symptoms before harvest but symptoms of an attack will be seen as singgang growing after harvest.
The younger the age of the affected plants and growing range of rice varieties, the more severe the tungro virus infection. Tungro virus disease of rice is the most important in Tropical Asia. Attacks can be very extensive crop damage in a short time.
Tungro disease in rice plants caused by tungro virus. The disease is transmitted by leaf hopper pest especially green leafhopper (Nephotettix virescens) and zigzag leafhoppers.
Actually for controlling this disease is quite difficult because the attacks are swift and spread. But there are some things you can do to control it:

  • Unplug and destroy infected plants so as not to infect healthy plants.
  • Rotation with crops can break the life cycle of leaf hoppers.
  • Control of plant hopper attacks the right way and the best use of insecticides to control leafhoppers.

So a little post about tungro disease in rice plants may be useful for all readers. For day 12 tomorrow we are going to discuss about burning leaf disease on rice plants.

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