Demite P R, Feres R J F
Programa de Pós-graduação em Biologia Animal, Universidade Estadual Paulista, São José do Rio Preto, SP, Brazil.
Braz J Biol. 2008 Aug;68(3):535-8. doi: 10.1590/s1519-69842008000300010.
Fungi are the most frequently observed pathogens of mite populations, helping to control them on different crops. Twenty-five samples of leaves were collected from rubber tree plantations adjacent to two fragments of Cerrado vegetation. Each rubber tree plantation had 25 plants selected for sampling and seven leaves from around each tree top were collected up to seven to eight meters above ground. Approximately 250 individuals of Calacarus heveae Feres, Phyllocoptruta seringueirae Feres, and Tenuipalpus heveae Baker, collected randomly, were mounted from each plantation. Hirsutella thompsoni Fisher was observed on all three mites and T. heveae was the most infected species. The highest infestation levels occurred from November to February (rainy season). In the dry season, infestation levels were below 5%. Hirsutella thompsonii has potential to be used as mycoacaricide during the rainy season.
真菌是螨类种群中最常见的病原体，有助于控制不同作物上的螨类。从与塞拉多植被的两片区域相邻的橡胶种植园中采集了25个叶片样本。每个橡胶种植园选取25株植物进行采样，从每棵树顶部周围采集七片叶子，采集高度达地面以上七至八米。从每个种植园中随机采集约250只橡胶小爪螨、橡胶短须螨和橡胶细须螨个体进行固定装片。在所有三种螨类上均观察到汤普森被毛孢，其中橡胶细须螨感染最为严重。最高感染水平出现在11月至2月（雨季）。在旱季，感染水平低于5%。汤普森被毛孢有潜力在雨季用作杀螨真菌剂。
