甘肃农业大学：《普通植物病理学》课程教学资源（PPT课件）第十二章 植物病害的诊断与防治 第六节 生物防治

口第六节生物防治 生物防治是指利用有益生物及其产 品防治植物病害的各种措施

第六节生物防治 生物防治是指利用有益生物及其产 品防治植物病害的各种措施

第六节生物防治 微生物防治机制： ·抗菌作用(antibiosis) 0; 溶菌作用(1ysis) ·竞争作用(competition) 1 重寄生作用hyperparasitism) ·捕食作用(predation) ■交互保护作用(cross protection)

第六节生物防治 ◼ 一、微生物防治机制： ◼ 抗菌作用(antibiosis) ◼ 溶菌作用(1ysis) ◼ 竞争作用(competition) ◼ 重寄生作用(hyperparasitism) ◼ 捕食作用(predation) ◼ 交互保护作用(cross protection)

第六节生物防治 微生物防治机制 ■抗菌作用(antibiosis)

第六节生物防治 ◼ 微生物防治机制 ◼ 抗菌作用(antibiosis)

SCREENING THE STRAINS OF TRICHODERMA GOOD!

SCREENING THE STRAINS OF TRICHODERMA GOOD!

第六节生物防治 微生物防治机制 ·竞争作用(competition)

第六节生物防治 ◼ 微生物防治机制 ◼ 竞争作用(competition)

第六节生物防治 微生物防治机制 "重寄生作用(hyperparasitism)

第六节生物防治 ◼ 微生物防治机制 ◼ 重寄生作用(hyperparasitism)

ELECTRON MICROGRAPH OF PYTHIUM CELL WALL PITTING CAUSED BY TRICHODERMA HARZIANUM. ■微生物防治机制： 溶菌作用(1ysis) 25KU 6日 0208 1 OU AGRIC

ELECTRON MICROGRAPH OF PYTHIUM CELL WALL PITTING CAUSED BY TRICHODERMA HARZIANUM. ◼微生物防治机制： ◼溶菌作用(1ysis)

重寄生作用(hyperparasitism) hyperparasitism by a Trichoderma strain on the plant pathogen (Pythium on the surface ←一Pythium of pea seed.The Trichoderma strain was Trichoderma stained with an orange fluorescent dye while the Pythium was stained green

重寄生作用(hyperparasitism) hyperparasitism by a Trichoderma strain on the plant pathogen (Pythium) on the surface of pea seed. The Trichoderma strain was stained with an orange fluorescent dye while the Pythium was stained green

COILING OF TRICHODERMA HYPHAE AROUND THE PLANT PATHOGEN RHIZOCTONIA SOLANI Trichoderma Rhizoctonia

COILING OF TRICHODERMA HYPHAE AROUND THE PLANT PATHOGEN RHIZOCTONIA SOLANI Trichoderma Rhizoctonia solani

COLONIZATION 25 um T-22 Bacteria Colonization of root hairs of corn by the highly rhizosphere competent strain of T.harzianum T22

Colonization of root hairs of corn by the highly rhizosphere competent strain of T. harzianum T22. COLONIZATION