New fungicides for protecting vines infected with downy mildew

This research paper presents the findings concerning the effectiveness of utilizing Pergado Zoks water dispersible granule (WDG) and Zorvec Encantia suspo-emulsion (SE) fungicides to protect grapevines against downy mildew. It shows that double or triple treatment of vines provides strong protection of the plants against the disease without adversely affecting vegetative growth of the crop. It has been proven that effective protection of vines against downy mildew through the use of Pergado Zoks WDGs and Zorvec Encantia SE has allowed for ensuring high crop-saving rate (up to 140%) as compared to control.

A Facile Approach to Increasing the Foliage Retention of Pesticides Based on Coating with a Tannic Acid/Fe3+ Complex

The effective utilization of many conventional pesticide formulations is less than 30%, which can increase the environmental impact of these substances. This degree of waste could be reduced by improving the adhesion of pesticides to foliage. In the present work, a complex comprising tannic acid (TA) and Fe3+ ions was used to encapsulate azoxystrobin and avermectin water dispersible granule (WDG) formulations (termed Az-WDG-TA and Av-WDG-TA) to improve adhesion. The treated pesticides exhibited improved photostability as well as sustained continuous release behavior. The retention proportions of the Az-WDG-TA and Av-WDG-TA on cucumber and lettuce foliage were improved by more than 50%. The ability of solutions of these materials to wet foliage was also enhanced after coating, such that the toxicity of Av-WDG-TA to aphids and the antifungal activity of Az-WDG-TA to Fusarium oxysporum were increased by nearly 50%. Given the low cost of TA and Fe3+ compounds and the simple synthesis process, this method represents a promising means of producing foliage-adhesive pesticide formulations with increased retention and bioavailability.

The Best Dosage of Polymer Dispersant in WDG by Zata Potential Method

Applied self-prepared GY dispersant into 75% thifensulfuron WDG formulation,only chang the dispersant and filler content, found out the optimal amount of dispersant using zata potential analyzer. The results show that when the dosage of dispersant is 6%, zeta potential to achieve the most negative,75% tribenuron water dispersible granule apparent suspension rate of more than 90%. Zata potentiometric method is a rapid method that decide anionic dispersant dosage.