Prevention and treatment of orange yellow dragon disease
Citrus huanglongbing disease is divided into two groups: å´ å´ å´ æ¶Ž èƒ èƒ ç¬ãƒ ç¬ãƒ ç¬ãƒ ç¬ãƒ ç¬ãƒ ç¬ãƒ ç¬ãƒ ç¬ãƒ ç¬ãƒ è‹é«æµ¯ç¬® è‹é«æµ¯ç¬® è‹é«æµ¯ç¬® è‹é«æµ¯ç¬® è‹é«æµ¯ç¬® è‹é«æµ¯ç¬® è‹é«æµ¯ç¬® è‹é«æµ¯ç¬® è‹é«æµ¯ç¬® è‹é«æµ¯ç¬® æ‹— æ‹— æ‹— æ‹— æ‹— æ‹— æ‹— æ‹— 涫鞲 涫鞲 ç¢æ¶«éž…æªå¦’ æªå¦’ 《 《 《 《 《 《 《 《 《 《 《?
Huanglong disease is the first important disease of citrus and hibiscus is the first important pest, so it must be treated with pest control.
Spray first, then wipe the tip and saw the tree. After the fruit is harvested, it is sprayed with an effective agent to prevent wood lice. After the medicine is cut, the branches on the diseased tree are sawn and cut off to prevent the adult hibiscus with pathogenic bacteria from driving to the healthy tree, causing human transmission. The control method of the hibiscus is the key time for chemical control and control of hibiscus: late autumn shoots, winter shoots, and winter shoots before sprouting.
With 10% imidacloprid 1000 times +19% rust latrine net 1500 times to prevent autumn shoots, rust mites, leaf miners and whiteflies, stink bugs, etc.; late autumn shoots, winter shoots: spray 2 times: with 4.5% The race was 1,000 times more effective in combating rafts and acne. Every month or so, 70% of propargite was used to control hibiscus, red spider and so on.
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