Hed Bryan E, Windham Mark T, Grant Jerome F
Graduate Research Assistant.
Associate Professor.
Plant Dis. 1999 Sep;83(9):806-809. doi: 10.1094/PDIS.1999.83.9.806.
The survival of conidia of Discula destructiva in frass of convergent lady beetles (Hippodamia convergens) was investigated. D. destructiva was isolated from frass pellets of 76% of adult convergent lady beetles exposed to D. destructiva for 1 h. Of the beetles from which D. destructiva was initially isolated, more than 80, 32, 19, 13, and 12.5% retained viable conidia of D. destructiva internally for at least 12, 24, 48, 72, and 96 h, respectively. Numbers of conidia, estimated with a hemacytometer, ranged from 0 to 3.2 × 10 conidia per frass pellet.
对毁灭盘多毛孢菌分生孢子在收敛性瓢虫（多异瓢虫）粪便中的存活情况进行了研究。在暴露于毁灭盘多毛孢菌1小时的成年收敛性瓢虫中，76%的粪便颗粒中分离出了该菌。在最初分离出毁灭盘多毛孢菌的瓢虫中，分别有超过80%、32%、19%、13%和12.5%的瓢虫在体内至少12、24、48、72和96小时内保留了存活的毁灭盘多毛孢菌分生孢子。用血球计数板估计，每个粪便颗粒中的分生孢子数量在0至3.2×10个分生孢子之间。
