Saturday, April 5, 2014

PLANT PEST CONTROL WHITE RICE

Pests are usually white ( Nymphula depuntalis guenee ) attack plants older than 6 weeks . A characteristic that can be seen as a sign of the presence of pests are white tubes made ​​from the leaves of rice plants tergerek ( truncated ) containing larvae and pupae were used for self-protection and deployment in search of food . Normally these tubes much floating in paddy fields. Unlike the fake white pests that just roll without cutting and broaching plant chlorophyll .
How to pest control white ( Nymphula depuntalis guenee ) :

    
Cleaning grasses that are white pest host plants ( Nymphula depuntalis guenee ) . White pest host plants include grasses and grass pickled Lempuyangan
    
The most effective control measure is according maspary land by drying for 5-7 days . Because the larvae of the white pest breathe by taking oxygen from the water so that it will lose the pest dried oxygen / can not breathe . Weird huh .... living in breathing in the air but that's water proof power of Allah .
    
There is another way , which is to collect larvae and pupae are white and penguburnya pests .
The morphology and biology of pests white ( Nymphula depuntalis guenee ) :
Moth / Imago

    
The color white moth , wing length 6 mm and a wing span of 15 mm
    
It comes at night and attracted light
eggs

    
Round shape light yellow
    
Eggs are laid in groups on the leaves or the stem adjacent to the surface of the water , the number of eggs 10-20 grains / group .
    
The tail moth can produce 50 eggs
    
Stage eggs 2-6 days
Larvae / caterpillar

    
The first instar cream-colored with a mean size of 1.2 mm length and 0.2 mm width and yellow head
    
Larvae make dipotog rolls of leaves and live in rolls ( tube ) TSB .
    
Each molt switch tube
    
Average of 20 days and experienced stage 5 instars .
    
Two instars are green . At the maximum growth of the larvae reach 14 mm long and 1.6 mm wide
Pupa / Cocoon

    
Beige color , towards becoming moths to white color
    
Pupa is formed in the tube .
    
Mean stage 7 days .
    
Parasites pupa is Tetrastichus sp and Apsilops cintroticus

referensi Picture  http://www.gerbangpertanian.com/2012/12/mengendalikan-hama-putih-tanaman-padi.html

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