First of all, under no circumstances should you overfill cherries. This is perhaps the most important thing in cherry farming. Hommosis most often affects trees in conditions of high humidity and excessive nutrition. But not only excessive humidity contributes to the appearance of the disease. Stone fruits do not tolerate acidic soil.
Gommosis usually appears on tree branches and trunks after unfavorable wintering conditions: sharp fluctuations in daily temperatures, freezing, frost cracks, sunburn. Incorrect and untimely pruning, mechanical damage, as well as damage by pests and diseases (clusterosporiasis, moniliosis, etc.).
On the trunks and branches of diseased trees, gum is released - a light, air-hardening liquid in the form of glassy transparent or yellow-brown deposits, “cherry glue”.
Gum discharge greatly inhibits plants, which reduce productivity and may die. What to do in such cases and how to treat trees whose trunks leak glue?
Prevention and treatment of gum development
- The main thing is to comply with the entire range of agricultural techniques for caring for trees, which increases winter hardiness, as well as resistance to pests and diseases.
- Protect trunks and branches from accidental injury. In autumn and early spring (February), whiten the trunks and skeletal branches (especially forks) with lime. Wrap the young ones with light film.
- Lime acidic soil at the end of summer, spreading lime under trees on heavy soils at 200-250 g, on light soils at 100-150 g per square meter. m.
- Fertilize moderately, maintain a balance of organic and mineral fertilizers.
- After trimming the branches, immediately cover with garden varnish, or better yet, rannet paste.
- Clean wounds that secrete gum, then disinfect with copper sulfate (10 g per 1 liter of water). After drying, rub 2-3 times at intervals of 5-10 minutes (as it dries) with fresh sorrel leaves or oxalic acid (100 g per 1 liter of water) and cover with garden varnish. If you have nigrol, you can use it (70 percent nigrol + 30 percent sifted dry ash).