As we all know, SW-248 (similar of Silwet 408 from Momentive) enhances the efficacy of insecticide in controlling insects who are in small size, propagate rapidly and move slowly. Such as red spider, aphid, whitefly, thrips, tea lesser leafhopper. 20% of conventional water with silicone adjuvant can be effective and with good performance.
For weeds with high resistance, SW-248 can significantly improve the weed control effect of diclofenac and cyhalofop on Echinochloa crusgalli. SW-248 is also with high performance for pesticide-resistant crops with thicker wax coatings.
However, Silicone adjuvants can cause “exfoliation” of leaf epidermis cells, which reduces water retention capacity and damages cells, resulting in crop damage. The silicone adjuvant damage occurred with close relationship of crop variety, pesticide variety, and adjuvant concentration, and the temperature at the time of spraying. Thus, attention should be paid to the four aspects as below when using organisilicon adjuvant with pesticides:
1: When there is no application experience, trials must be made for the crops and chemicals related, to avoid any crop damage;
2: The concentration of silicone adjuvants should be paid attention. Do not add the dosage at random or at will. Spray concentration should be controlled below 0.1% or 0.3% would be better;
3: When spraying on fruit trees, do not spray directly on fruits, or using bags to cover or protect the fruits;
4: Do not spray pesticides at high temperature. Spraying in the morning or the evening would be recommended.
Hangzhou Topwin developed various Agricultural Silicone Surfactants (Spray Adjuvant, Spray Enhancer, Tank Mix Adjuvant, Superwetting Agent, Super Spreader Surfactant, PH-stable Penetrant, Oil Soluble Spreader, Silicone Surfactant, Hydrolysis Resistance Spreader, Silicone Antifoam, Drift Retardant Spreader). Such as similar products of Silwet 408, Silwet 806, Silwet77, BREAKTHRU 240…
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Products
|
Surface Tension (0.1%aq.) mN/M |
Rainfastness
|
Penetration
|
Spreading
|
Low Foam
|
pH range
|
|
SW-248 |
20.0-20.5 |
★★★★★ |
★★★★ |
★★★★★ |
★ |
6.5-7.5 |
|
SW-254 |
21.5-22.0 |
★★★★ |
★★★★★ |
★★★★ |
★★ |
5.0-9.0 |
|
SW-255 |
20.3-20.8 |
★★★★★ |
★★★★ |
★★★★★ |
★★★★★ |
6.5-7.5 |
|
SW-258 |
20.3-20.8 |
★★★★★ |
★★★★★ |
★★★★★ |
★ |
6.5-7.5 |
|
SW-276 |
20.5-21.0 |
★★★★★ |
★★★★ |
★★★★★ |
★★★★ |
6.5-7.5 |
|
SW-277 |
20.5-21.0 |
★★★★★ |
★★★★ |
★★★★★ |
★★ |
6.5-7.5 |
|
SW-278 |
21.3-21.8 |
★★★★ |
★★★★★ |
★★★★ |
★★★ |
5.5-8.5 |