Cucumber and grape downy mildew, commonly known as "happy horse dry" and "dry leaves", can affect adult plants at the seedling stage, mainly affecting leaves and stems, less tendrils and pedicels. Downy mildew has an important impact on the growth of cucumbers and grapes, and is directly related to the yield of cucumbers and grapes. So how to prevent downy mildew?
Features
Dimethomorph mainly acts on bacteria from the following three aspects: preventive effect, which can prevent the germination and invasion of germ spores; therapeutic effect, which can penetrate into plant tissues and kill fungal hyphae; anti-spore effect, which can prevent the germ spores from Formation, reducing the source of infection. This unique mechanism of action and the characteristics of multiple action stages make dimethomorph have an excellent control effect on downy mildew and blight.
(1) Good effect and long lasting effect
Dimethomorph has a unique mechanism of action, effectively acts on all growth stages of Oomycete fungi, and has special effects on various downy mildews and blights. It has both preventive effect and therapeutic effect, as well as anti-sporulation effect. The application interval of dimethomorph is usually about 7-10 days, which is 3-4 days longer than other agents, and has a long lasting effect, which reduces the number of medications and saves working hours and costs.
(2) No drug resistance
Dimethomorph has no cross-resistance with other fungicides such as metalaxyl and cymoxanil, and has strong mixing ability, which can quickly kill bacteria resistant to other fungicides and ensure stable drug efficacy.
(3) Resistance to rain erosion
Super water-soluble and dispersible, strong penetration, can quickly penetrate the leaves and spread locally, resistant to rain erosion, and the efficacy of the drug is hardly affected by rain 1 hour after spraying. Enhance plant photosynthesis, make fruits and vegetables brighter, and comprehensively improve crop yield and quality;
(4) Good recombination
Dimethomorph can be combined with pyraclostrobin, azoxystrobin, cymoxanil, mancozeb, propineb, krysstrobin, thiram, chlorothalonil, triethylphosphonate aluminum, pyraclostrobin , amino oligosaccharins, prochloraz, metalaxyl, Zhongshengmycin, iprodione and other compounds.
(5) Good security
Dimethomorph is also very safe even when used during the flowering and fruit enlargement periods.
