black leaf spot

常見例句

Gaolan No. 2 seedlings showed slightly lower growth rate but lower natural incidence by black spot and leaf rust than that of Wuqi Non and Xining No 5 seedlings.
皋蘭2號種苗次之，但皋蘭2號種苗對黑斑病和葉銹病的自然發(fā)病率又低于吳旗11號和西寧5號種苗。
The survey found that the most serious diseases were black mould of Leucaena spp. , anthracnose of Desmodium spp. , Tubercularia leaf spot of Glycine wightii spp. , and anthracnose of Arachis spp.
為害較重的病害有銀合歡黑霉病、山螞蝗炭疽病、爪哇大豆瘤座孢葉斑病和野花生炭疽病等。
Thirty years ago, if you were walking along the coast of the Netherlands and picked a two-spot ladybug off the leaf of a European lime tree, chances were that the bug would be red with black spots.
30年前，如果你走在荷蘭的海岸邊，從菩提樹上取下一只雙斑瓢蟲，你會發(fā)現(xiàn)這只瓢蟲的顏色是紅色黑斑的；