天气预报15天查询> 其他> 为什么桃树叶会变红

为什么桃树叶会变红

更新时间: 2020-09-19 00:00:00     

4月份春季桃芽正处于膨大和展叶期,这时的桃树叶片比较幼嫩,容易被病菌感染,如果此时再遇到10℃-16℃的低温,再加上冷凉潮湿阴雨天气,就会引起该问题的发生。早春气温低,阴雨多,空气潮湿,发病多而重,反之,发病轻或不发病。8月下旬至9月下旬的秋季,如气候与早春相似,也会轻微发生。

关键词: 为什么 桃树

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-1965987/ | 耗时:0.8484 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=1965987 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1965987 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1965987 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(133730,2471172,3299997,1051475,184295,3277214,2462030,205698,1083469,2822556,1388003,1705683,1090048,1097583,1048280,1008730,2927720,1114478,1408257,2667388,1677329,1063097,1070488,1128641,1347692,1345973,1785881,1076319,1072647,3165719) ORDER BY field (ArticleID,133730,2471172,3299997,1051475,184295,3277214,2462030,205698,1083469,2822556,1388003,1705683,1090048,1097583,1048280,1008730,2927720,1114478,1408257,2667388,1677329,1063097,1070488,1128641,1347692,1345973,1785881,1076319,1072647,3165719)