Phethatai (1994) reported that the trial results showed that extracts of Neem and Derris are highly effective against the nymhs of brown planthopper. Both methods exposed and how to eat dead.
Phethatai (1994) reported that the trial results showed that extracts of Neem and Derris are highly effective against the nymhs of brown planthopper. Both methods exposed and how to eat dead.