Soybean Thirteenth to fourteenth week practices

Gram pod borer: 

Symptoms:

• The young larvae feeds on the chlorophyll of young leaves and skeletonize it.
• They feed voraciously on the foliage in the early stage, may defoliate the plant, and later feed on flowers and pods.

Management:

• Deep summer plowing
• Install pheromone traps at a distance of 50 m @ 5 traps/ha for each insect pest.
• Erect bird perches @ 50/ha.
• Clip terminal shoots on 100 days of crop growth.
• Setting of light traps (1 light trap/5 acre) to kill moth population
• Dusting with Chloropyriphos 1.5 % DP or fenvalerate 0.4% or quinalphos 1.5% @ 25 to 30 kg/ha
• Spray with Chloropyriphos 1.5 % DP @1200 ml/ha or quinalphos 25 EC @ 1.0 lit/ha.