Characteristics of triazole fungicides
Triazole fungicides have strong systemic conductivity. When sprayed on crops, the solution is quickly absorbed. When applied to the roots, it can be absorbed by the root system of the crop and conducted upward to the aboveground part. After spraying on the leaves, it can be transported from the drug-infected part to the tip of the leaf. When the leaf sheath is drugged, it can be transported to the leaf. However, the drug is rarely transported downward from the tip of the leaf. The transport is limited to the same leaf and cannot be transferred to other leaves.
Experiments have shown that only three drops of triazole fungicide solution are needed to cover the entire leaf within one day.
Common types of triazole fungicides used on strawberries
Tebuconazole, Difenoconazole, Flusilazole, Hexaconazole, Propiconazole, Epoxiconazole, Penconazole, Tetraconazole
The order of inhibition of triazole pesticides on strawberry growth
Epoxiconazole＞Flusilazole＞Propiconazole＞Diniconazole＞Triadimefon＞Tebuconazole＞Myclobutanil＞Penconazole＞Difenoconazole＞Tetraconazole
The order of efficacy of triazole fungicides on strawberry anthracnose
Difenoconazole＞Propiconazole＞Flusilazole＞Myclobutanil＞Diniconazole＞Epoxiconazole＞Penconazole＞Tetraconazole＞Triadimefon
Precautions for use
The problem faced by triazole fungicides and other systemic fungicides is that crop resistance will increase rapidly, so special attention should be paid to rational use of drugs, dosage and interval time.
Rationally use triazole fungicides to prevent and control the occurrence of pesticide damage. Triazole fungicides have the characteristics of broad-spectrum fungicides. In addition to significant disease prevention and treatment effects, they also have a strong regulatory effect on plant growth.
1. Triazole fungicides are agents for fungal diseases, but they are ineffective against oomycetes and diseases caused by pathogens such as bacteria and viruses;
2. The best time to use triazole fungicides is the early stage of disease infection. At this time, the pathogens begin to absorb organic nutrients in the host while developing and forming new asexual spores. Therefore, triazole fungicides are therapeutic fungicides;
3. Triazoles are best mixed with fungicides with other fungicides, and the effect will be better. For example, compound with protective fungicides such as pyraclostrobin, copper preparations, mancozeb, and thiram to first eliminate most of the pathogen spores before germination, and then clean up the residues that have invaded the plant body.
