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一、炭疽病炭疽病在澳洲坚果植株的叶、嫩梢和果实上均有发生。主要症状:植株受到危害后,叶片枯黄出现黑色块状斑,嫩梢枯死,幼果和果壳变黑褐色,后期组织上长出黑色近轮纹状分生孢子器。防治方法:修除下垂枝,保持树体通风透光。可用70%“甲基托布津”800~1000倍液,或80%“炭疽福养”700~800倍液进行喷雾。二、衰退病澳洲坚果树常表现为速衰退及慢衰退两种。其外部症状表现为:叶变黄—落叶—枝条回枯—整株死亡,但
Anthracnose Anthracnose occurs on the leaves, shoots and fruits of macadamia plants. The main symptoms: After the plants are harmed, the leaves appear yellow patchy patches of yellowish, tender shoots die, young fruit and shell dark brown, the late tissue grow black round conidia conidia. Prevention and treatment methods: repair drooping branches, keep the tree light and breathable. Available 70% “thiophanate methyl” 800 ~ 1000 times, or 80% “anthrax blessing ” 700 ~ 800 times the liquid spray. Second, the recession Macadamia trees often show two kinds of rapid decline and slow decline. The external symptoms are as follows: leaf yellowing - deciduous - branches back to dry - whole plant death, but