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Crab

30
Jul

Rice field crab

 

Scientific name : Paratelphusa hydrodromus

Local name :

Damage of Rice field crab:

1. The seedlings are cut by crabs at ground level into small bits which are carried to the holes for feeding.

2. In older plants outer sheaths are cut open and the inner portions are consumed.

3. In an attacked field bits of leaves and stems can be seen floating in water.

File Courtesy: 
CRRI
Photo Courtesy: 
CRRI
28
Jul

Control Measures for Crab (Khekada)

Manual control measures for crab :

Collection and destruction of crabs using petro max in the beginning of rainy season.

Chemical control measures for crab :

Use of poison baits containing acephate @75 g. or carbaryl @ 100 g or endosulfan 40 ml mixed with 1 kg cooked rice.

File Courtesy: 
RARS, Karjat
28
Jul

Nature of damage of Crab (Khekada)

 

1. Crabs are polyphagous. They cut the young paddy plants near the ground level and carry them to their burrows for feeding.

2. They are mostly active during nights. Besides this they prepare a series of burrows in the embankment of paddy fields as result of which, water is not retained in the field which is vitally required for crop growth.

File Courtesy: 
RARS, Karjat
Photo Courtesy: 
RARS, Karjat
28
Jul

Crab (Khekada)

 

1. Pest Name - Crab.

2. Scientific Name - Paratelphusa spp.

3. Local Name - Khekada.

4. Infestation intensities - Low to moderate.

5. Crop Growth stages - Seedling.

File Courtesy: 
RARS, Karjat
Photo Courtesy: 
RARS, Karjat
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