Submitted by Prem.verma124 on Wed, 21/04/2010 - 15:22
Posted in
http://www.jnkvv.nic.in/IPM%20Project/nematode.html#Chickpea_Cyst_nematode
Chickpea Cyst Nematode (Heterodera cajani)
Identification
- Heterodera cajani is a widely prevalent parasite of mainly leguminous crops.
- The second stage juveniles attack the roots and develop to produce lemon shaped white females
protruding out of root.- The female deposits many eggs in a large gelatinous eggs but retains some in body, which after death turns into a brown cyst.
- The nematode completes the life cycle in 3-4 weeks and has several generations in a single crop season.
Damage
- The crop shows yellowing and stunted growth with poor pod formation.
Cultural Control
- Summer ploughing of the field and crop rotation for 2-3 years with cereals may reduce nematode population densities.
Chemical Control
- Application of carbofuran or phorate @ 1-2 kg a.i./ha may also reduce crop damage.
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