Airiti Library華藝線上圖書館 | 食品添加物合法業者資訊網

由葉士財著作·2011—生育期間果實主要的病害有炭疽病（Colletotrichumgloeosporioides）、瘡痂病（Pestalotiapsidii）、黑星病（Phyllostictapsidiicola）及疫病（Phytophthora ...

The guava is an important economic fruit trees in central Taiwan. The anthracnose (Colletotrichum gloeosporioides), scab (Pestalotia psidii), black spot (Phyllosticta psidiicola) and Phytophthora fruit rot (Phytophthora nicotianae var. parasitica) are four important fruit diseases during cultivated period. In this study, the occurrences of major guava fruit diseases were investigated, and field and laboratory fungicides trials were processed. Results showed that the anthracnose had two major infected periods, Jun. to Aug. and Oct. to next Feb. The scab was infected during Jul. to Nov. The optimal growth temperature for mycelium of scab is from 15 to 30 ℃. The black spot occur during Jul. to Oct. The Phytophthora fruit rot is infected between Aug. and Oct., just a heavy rainfall as typhoon period. Difference fungicides were tested to inhibit pathogens mycelium growth for understan...