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经１９９６年至１９９８年室内接种试验，分别比较了人工饲养带毒和自然带毒的茶翅蝽成虫和若虫的传病特点。结果显示：室内人工饲养带毒的３龄、４龄若虫接种泡桐发病率分别达６１．７％ 和４６．５％ ，高于自然带毒的若虫１６％ 的传病率。室内饲养带毒成虫的接种发病率为１４．１％ ，高于自然带毒成虫４．５％ 的传病率。寄主体内病原的最短潜育期（ＭＩＰ）室内饲毒３龄若虫为３４ ｄ，４龄为４５ ｄ，成虫处理为２１９ ｄ；自然带毒若虫为２４３ ｄ，成虫处理为２５７ ｄ。６月接种苗多在当年表现病状，７月接种苗均在次年发病。３龄、４龄若虫接种后病原潜育期（ＩＰ）与泡桐苗累计发病率的关系分别为ｙ＝ ０．８４７ ２ｘ＋ ２３．０４４（Ｒ２＝ ０．８７４ ３），ｙ＝ ０．７５９ｘ＋ ２９．０２２ （Ｒ２＝ ０．８０１ ９）；由此得到相应的３龄潜育期中值ＬＰ５０＝ ６５．４０ ｄ 和４龄ＬＰ５０＝ ６６．４７２ ｄ。室内３龄、４龄若虫在充分吸食病组织后，其传病力差异不大，且传毒后病原在寄主体内的潜育期中值没有明显的差异。
After 1996 to 1998 indoor vaccination test, respectively, compared with artificial feeding poisonous and naturally poisoned Entomophthora larvae and nymph transmission characteristics. The results showed that the incidence rates of paulownia inoculated with artificial feeding 3rd instar and 4th instar nymphs were 61.7% and 46.5% respectively, which were higher than those of naturally infected nymphs. The incidence of indoor incubation with poisoned adults was 14.1%, which was higher than the 4.5% prevalence of naturally infected adults. The minimum latent period (MIP) of pathogen in the host was 34 days for the third instar nymphs, 45 days for the fourth instar and 219 days for the adult worms. The natural nymphs were 243 days and the adults were 257 days. Inoculated seedlings in June more than the performance of symptoms in the year, July vaccination are in the following year onset. The relationship between the pathogenicity (IP) of the 3rd instar and the 4th instar nymphs after vaccination and the cumulative incidence of Paulownia seedlings were y = 0.847 2x + 23.044 (R2 = 0.874 3) and y = 0.759x + 29 respectively. 022 (R2 = 0.801 9). The corresponding median LP50 = 65.40 d in the third instar larvae and LP50 = 66.472 d in the fourth instar larvae were obtained. There was no significant difference in the pathogenicity of 3rd instar and 4th instar nymphs after full ingestion of the diseased tissues, and there was no significant difference in the median of the latent period of the pathogen in the host after being infected.