Why is there glue on the leaves of the tree of peace?

Gummosis occurs all over China, and it is a very common disease. Too much gum will seriously weaken the tree and even cause the whole plant to die.

Prevention and control methods:

1, strengthen management and enhance tree potential. Apply more organic fertilizer, don't accumulate water in the basin, properly apply calcium superphosphate, improve soil, prune reasonably and reduce branch wounds.

2. Control pests and diseases on branches, control pests and diseases, and control pests such as scale insects, aphids and longicorn beetles. Paint the trunk on a safe tree as soon as possible and in the freezing spring to prevent frostbite and sunburn.

3, chemical control, you can use 50% thiophanate-methyl ultra-fine wettable powder 1000 times solution, you can also use carbendazim or procymidone, the control effect is particularly good.