Why not try this new technique of seed floatation before sowing your seed...
"When the farmers take out their seed from storage and open the lid of the container, they may find flying insects. To confirm if the seed has been attacked, the farmer takes a sample of seed in his hand and on close observation they will find holes in the seed. Insects eat the endosperm - the inside of the seed - so these seeds become light and easily float on the water."
Web published : R.Raman, AfricaRice
8 years, 9 months ago