Based on the deterrent effect of Camellia sinensis powder on insect, a compound flea beetle powder was developed and
pesticide experiment was carried out in this study. The results of plot test covered with veil mats showed that compound flea beetle powder not only had a good control effect on Phyllotreta striolata (F.), but also had a fertilizer efficiency, embodied in the improvement of seedling emergence, reduction of feeding holes and advancement of vegetable output, all of these were significant difference at 0.05 compared with single camellia sinensis powder and blank control. The results of field test treatments (veil mats covered and no-covered ground) showed that the compound flea beetle powder had excellent control effect on insect population development, the number of adults insect was relative minimum, the leaf damaged index were 0.2950 and 0.4221 respectively, less than the blank control (0.3505 and 0.6745). |