| Customization: | Available |
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| CAS No.: | 95737-68-1;80060-09-9 |
| Formula: | C20h19no3;C23h32n2OS |
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Pyrproxyfen is a synthetic insect growth regulator. It belongs to the juvenile hormone class. Its chemical structure is stable and resistant to decomposition. It persists in the environment. Pyrproxyfen has low toxicity to humans and mammals. It selectively targets non-beneficial insects. It regulates the endocrine system of insects. It disrupts their development and reproduction. Pyrproxyfen inhibits molting, reproduction, and nurturing processes. This prevents normal insect development. It controls pest populations effectively. Specifically, it inhibits acetylcholinesterase activity in pests. This leads to the accumulation of acetylcholine. Consequently, nerve transmission is disrupted. Insects experience paralysis and eventually die.
The core mechanism of Diafenthiuron is to interfere with the energy metabolism of pests' nervous systems, disrupting their basic functions to achieve insecticidal effects. Diafenthiuron acts similarly to propargite and belongs to the class of mitochondrial ATP synthase inhibitors. Under ultraviolet light, multifunctional oxidases in the pest's body decompose dinotefuran into a carbon diimidate. This substance hinders mitochondrial function in the pest's nerve cells, blocking respiration and energy conversion.
Diafenthiuron primarily exerts contact and stomach toxic effects on pests. It disrupts the energy metabolism of the nervous system, damages its fundamental functions, and inhibits chitin synthesis. After application in the field, pests become paralyzed before dying. The effect begins within 3 days, peaking at 5 days post-application.
Diafenthiuron exhibits excellent biological activity against mites at all life stages and also shows outstanding control effectiveness against resistant diamondback moths.
Application of Pyrproxyfen
Main Pest Types Controlled by Pyrproxyfen
1. Aphids: Aphids are common agricultural pests. They suck plant sap, hindering plant growth. Pyrproxyfen effectively controls aphids by preventing normal molting, reducing their population.
2. Whiteflies: Whiteflies are another common agricultural pest. They extract plant sap and spread viral diseases, causing serious harm to crops. Pyrproxyfen effectively reduces whitefly populations.
3. Scale Insects: Scale insects primarily infest plant leaves, causing yellowing and leaf drop. Pyrproxyfen disrupts their molting process, lessening their damage.
4. Flies: Fly pests harm crops directly and spread diseases. Pyrproxyfen significantly controls fly populations, effectively reducing their numbers.
Methods of Using Pyrproxyfen
1. Spraying Method: Prepare a spray solution of Pyrproxyfen according to recommended doses. Spray directly on affected crops, ensuring even coverage on both sides of the leaves and surrounding plants for better control.
2. Seed Treatment: For pests that spread through seeds, mix Pyrproxyfen with seeds before planting. This effectively prevents pests during the seedling stage.
3. Soil Treatment: For underground pests, prepare a concentrated Pyrproxyfen solution for soil treatment. This efficiently controls pests such as root maggots and soil-dwelling caterpillars.
4. Fumigation Method: In well-sealed agricultural environments, use the fumigating properties of Pyrproxyfen to treat greenhouses or tunnels, killing pests hidden in the soil or substrate.
5. Greenhouse Gas Release Method: Release Pyrproxyfen in gaseous form into greenhouses using specific equipment. Its gas stability allows it to remain in the greenhouse for an extended period, achieving continuous pest control.
Application of Diafenthiuron
Diafenthiuron is widely used on cotton, fruits, vegetables, and tea. This agent is a selective insecticide with both systemic and fumigant properties. It can control sensitive strains of aphids as well as those that have developed resistance to carbamates, organophosphates, and pyrethroids. Additionally, it can manage pests such as leafhoppers, whiteflies, diamondback moths, cabbage butterflies, and noctuids. This agent can be mixed with most acaricides and insecticides.
1. To control diamondback moths on cruciferous vegetables, apply the treatment during the early larval stage. Use 40-60g of 50% Diafenthiuron wettable powder mixed with water per acre for spraying. The safe interval is 14 days, with a maximum of 2 applications per season.
2. To control apple red spider mites, apply the treatment during the adult and juvenile mite stages. Use a 1000-2000-fold dilution of 50% Diafenthiuron wettable powder for whole plant spraying at a rate of 1000-2000mL per acre. The safe interval is 21 days, with a maximum of 2 applications per season.
3. To control cabbage caterpillars and diamondback moths on cruciferous vegetables, apply the treatment during the early larval stage. Use 60-100mL of 25% Diafenthiuron emulsifiable concentrate and 80-120mL mixed with water per acre for spraying. The safe interval for both is 7 days, with a maximum of 1 application per season.
Package:
Liquid: 250ml bottle, 500ml bottle, 1L bottle, 5L drum, 20L drum, 200L drum…
Solid: 100g bag, 500g bag, 1kg bag, 25kg bag/drum…
Packaging and labeling are customized according to customer requirements.
| Product name | Pyriproxyfen |
| Tech grade | 95%TC |
| Formulation | 10%ME,1%GR,10.8%EC,5%EW |
| Molecular formula | C20H19NO3 |
| CAS No. | 95737-68-1 |
| EINECS No. | 429-800-1 |
| Shelf life | 2 Years |
| Product name | Diafenthiuron |
| Tech grade | 97%TC |
| Formulation | 50%WP, 25%EC,50%SC |
| Molecular formula | C23h32n2OS |
| CAS No. | 80060-09-9 |
| EINECS No. | / |
| Shelf life | 2 Years |
Q1: How can you guarantee quality?
A1: Always a pre-production sample before mass production;
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