| 5 | 1/1 | 返回列表 |
| 查看: 916 | 回復: 8 | ||
| 當前只顯示滿足指定條件的回帖,點擊這里查看本話題的所有回帖 | ||
ngxiaochu金蟲 (小有名氣)
|
[求助]
Anthracnose leaf blight on corn 是玉米的什么病?
|
|
| 請教各位專家,求詳解。。。 |
木蟲 (著名寫手)

|
詳細請見http://www.ent.iastate.edu/image ... 796.33anthracn.html和http://www.ipm.iastate.edu/ipm/icm/2001/6-18-2001/smallcorn.html。 “We also have started to see anthracnose lesions on small corn plants. Anthracnose leaf blight (caused by the fungus Colletotrichum graminicola) is usually one of the first leaf diseases to appear. The fungus survives in crop residue and its spores are splashed onto the leaves. Anthracnose is definitely more severe where corn follows corn. Symptoms are brown, oval, or elliptical spots (up to about 1/2 inch in length) with a dark brown or purplish border, often surrounded by a yellowed zone. There may be black speckles within the dead tissue. Sometimes the symptoms are limited to the leaf margins. Anthracnose can cause significant damage to very young plants and contributes to postemergence stand loss, but it appears that it has been too cold for this disease to develop much until now. As with the bacterial leaf diseases, we do not expect any economic impact of these early-season leaf infections this year.” |
金蟲 (小有名氣)
金蟲 (小有名氣)
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 求收留 +5 | 1943443204 2026-03-28 | 5/250 |
|
|---|---|---|---|---|
|
[考研] 375求調劑 +4 | 雨夏整夜 2026-03-29 | 4/200 |
|
|
[考研] 291求調劑 +4 | Y-cap 2026-03-29 | 5/250 |
|
|
[考研] 生物學學碩,一志愿湖南大學,初試成績338 +6 | YYYYYNNNNN 2026-03-26 | 7/350 |
|
|
[考研]
|
y7czhao 2026-03-26 | 10/500 |
|
|
[考研] 352分 化工與材料 +5 | 海納百川Ly 2026-03-27 | 5/250 |
|
|
[考研] 一志愿211院校 344分 東北農業(yè)大學生物學學碩,求調劑 +5 | 丶風雪夜歸人丶 2026-03-26 | 8/400 |
|
|
[考研] 266求調劑 +11 | 陽陽哇塞 2026-03-27 | 12/600 |
|
|
[考研] 材料292調劑 +12 | 橘頌思美人 2026-03-23 | 12/600 |
|
|
[考研] 279 分 求調劑 +4 | 睡個好覺_16 2026-03-24 | 4/200 |
|
|
[考研] 085600,材料與化工321分調劑 +4 | 大饞小子 2026-03-27 | 6/300 |
|
|
[考研] 322求調劑 +4 | 我真的很想學習 2026-03-23 | 4/200 |
|
|
[論文投稿] Journal of Mechanical Science and Technology +3 | Russ_ss 2026-03-25 | 5/250 |
|
|
[考研] 276求調劑。有半年電池和半年高分子實習經歷 +10 | 材料學257求調劑 2026-03-23 | 11/550 |
|
|
[考研]
材料學碩,求調劑
6+5
|
糖葫蘆888ll 2026-03-22 | 10/500 |
|
|
[考研] 材料調劑 +8 | 匹克i 2026-03-23 | 8/400 |
|
|
[考研] 求調劑,一志愿 南京航空航天大學大學 ,080500材料科學與工程學碩 +4 | @taotao 2026-03-26 | 5/250 |
|
|
[考研] 321求調劑 +6 | Ymlll 2026-03-24 | 6/300 |
|
|
[考研] 生物學 296 求調劑 +4 | 朵朵- 2026-03-26 | 6/300 |
|
|
[考研] 300分,材料,求調劑,英一數二 +5 | 超贊的 2026-03-24 | 5/250 |
|