What are the common disease control methods for cucumbers?
As a vegetable that everyone eats regularly, cucumbers are grown by quite a lot of people. During cultivation, some diseases inevitably occur and affect everyone's returns, so which diseases are the ones people most often run into? Today Qinnong Network will briefly introduce a few diseases so that everyone has some understanding.
1. Gummy stem blight
Gummy stem blight is a condition easily triggered by wounds, and sometimes leaves become infected and then pass it on to the vines. The symptoms are that the nodes of the vines slowly turn yellowish-brown, after which black spots begin to appear, and finally the vines wither and die. The onset is mostly concentrated in the rainy season, especially in plum rain weather. When the disease appears, it can be treated with 30% metalaxyl-hymexazol 600x solution, which can also be sprayed onto the soil in advance for prevention.
2、Stem rot
Stem rot very easily causes cucumber seedlings to die, and is a disease that begins rotting from the roots. It is mostly caused by pathogens; in the early stage the whole plant tends to turn yellow, then white mold-like growth appears at the roots, and finally the root stem rots. This disease is mostly caused by grafting, so after grafting, disease prevention must be done well, and secondly, do not water excessively after grafting. Before planting, it is best to disinfect with 38% oxadixyl-cymoxanil-kresoxim-methyl 800x solution.
3. Gray mold
Gray mold occurs mostly on leaves and flowers, easily affects the fruiting rate, and in severe cases can even cause the plant to wither. The symptoms are brownish-yellow spots on the leaves or flowers, which then slowly expand and rot; when the rotting parts fall off, they may attach to other places and cause a larger area of rot. Once it appears, it can be treated promptly with 40% pyrimethanil wettable powder 600x solution or similar fungicides. The affected parts must be removed immediately.
4. Brown spot disease
This disease occurs mostly on leaves and is extremely contagious. It is mostly caused by humid weather triggering the plant's own pathogens. The symptoms are brown spots appearing on the leaves, which then slowly turn yellow and join together, and finally the entire leaf turns yellow, with severe cases developing mold. In daily care, once leaves are found to be turning yellow, be sure to carefully check whether there are white spots or the like. 50% carbendazim wettable powder 500x solution has a very good therapeutic effect on brown spot disease.
Cucumbers are prone to a number of pathogenic diseases, and these are mostly triggered by humidity and soil. When planting, everyone must do a good job of anti-pathogen measures, and the clearing of the land must be thorough. The above are some of the diseases encountered when growing cucumbers. When treating them, everyone must compare carefully to avoid making mistakes.