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Sunjoy Agro is one of China’s leading crop protection companies. It established business in 88 countries, with a global turnover of US$300 million.
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We believe innovation is the answer to today’s agricultural challenges.
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We provide plant protection and plant nutrition products that help build healthy and sustainable food systems.
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Sunjoy Agro implements the concept of sustainability development throughout the corporate mission, philosophy and strategy.
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Case Studies
We provide plant protection and plant nutrition products that help build healthy and sustainable food systems.
Control Pest in Cucurbit Whitefly
Insecticide
Cucurbits are part of the gourd family, which includes cucumbers, melons, squashes, and pumpkins. Cucurbits thrive in warm climates, needing lots of sunshine and well-drained soil. Their major growing regions include China, India, the United States, and parts of Europe and South America.
The main growth stages of cucumber start with germination, where seeds sprout into seedlings. Next is the seedling stage, where young plants develop their leaves and root systems. The next phase is the vegetative stage, characterized by rapid leaf growth and vine development. This is followed by the flowering stage, with bright yellow blossoms appearing. These flowers eventually lead to the fruiting stage, where cucumbers start to grow and ripen.
Cucurbits can face a variety of diseases and pests that affect their growth and yield. The main diseases include bacterial wilt, powdery mildew, downy mildew, anthracnose, and angular leaf spot. The common pests are aphids, thrips, and whiteflies.
Pyrethroid and neonicotinoid insecticides are widely used for whitefly control. In some countries, resistance to these active ingredients has increased dramatically over the years. For effective control of whiteflies, Sunjoy Agro recommends using Acetamiprid 100g/L+Bifenthrin 100g/L SC, diluted at a rate of 1000 -3000 times. This product has many benefits for both crops and customers:
- Two active ingredients with a perfect ratio and maximum synergy effect;
- Excellence in quick acting and long residual activities compared to using Acetamiprid or Bifenthrin alone, especially in areas with high resistance to Pyrethroid pesticides.
In 2024, Sunjoy Agro conducted field trials in Shandong province to test the control efficacy of Acetamiprid 100g/L+Bifenthrin 100g/L SC. Due to high insect resistance in this area, farmers sometimes mix this product with some other neonicotinoid insecticides to increase the control efficacy. It is worth noting that in this specific area, insect resistance is much higher than in other provinces, leading farmers to use at least 4 different kinds of insecticides to control whitefly populations.
During the trial, we applied Acetamiprid 100g/L+Bifenthrin 100g/L SC (750X) tank mix with 70% Dinotefuran (1500X) to test whitefly control efficacy on bitter guard. We evaluated the treatment on 10 bitter guard leaves. Before the spray, there were 492 whiteflies on these 10 leaves. One day after the spray, the number of whiteflies reduced to 123, resulting in a control efficacy of about 75%. 3 days after the application, the whitefly population increased slightly to 201, and the control efficacy was about 59%.
We also applied the same fungicide mixture and conducted a similar evaluation on 10 cucumber leaves. Before the spray, there were 940 whiteflies on these 10 leaves. One day after the spray, only 179 whiteflies were found, leading to a control efficacy of approximately 71%. 3 days after the application, the whitefly population increased to 404, with the control efficacy of about 57%.
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