and its density index(individual/room) dropped from .7 to .9. Dropped on ootheca infestation rate from 7.79% to . 8%, and its density index from .08 to . 7. After the campaign, all indexes reached the "Double five" and "Double two" standards.
and its density index(individual/room) dropped from .7 to .9. Dropped on ootheca infestation rate from 7.79% to . 8%, and its density index from .08 to . 7. After the campaign, all indexes reached the "Double five" and "Double two" standards.
卵荚侵害率从7.79%降至. 8%,密度指数(只/间)从.08降至. 7。 灭后各项指标均达到“双”、“双”标准。