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Lower the pH in Your Spray Tank

If your water supply is alkaline, especially if the pH is 8 or greater, and you are using a pesticide that is sensitive to hydrolysis, you should lower the pH of the water in the spray tank. A pH in the range 4-6 is recommended for most pesticide sprays. You can adjust your spray solutions to the 4-6 pH range by the use of adjuvants that are marketed as buffering agents. Examples are:

Buffer
Nutrient Buffer Spray
0-8-0 Zn Fe
0-16-9 Zn
10-12-0 Zn
8-8-2 Zn Mn

A question that is sometimes asked is whether acidification increases the residual time of the pesticide on the plant, thus affecting such factors as re-entry time and pre-harvest intervals. Residue tests on foliage sprayed with acidified and unacidified parathion sprays have failed to show any differences in the rate of degradation of the parathion. This would be expected since the pH of the foliage runs around 7.

There are a few pesticide materials which should not be acidified under any circumstances. Sprays containing fixed copper fungicides (including Bordeaux mixture, copper oxide, basic copper sulfate, copper hydroxide, etc.) and lime or lime sulfur should not be acidified. But, if the product label tells you to avoid alkaline materials, chances are good that the spray mixture will benefit by adjusting the pH to 6 or slightly lower.

The major benefit from acidification is obtained during the time the pesticide is in the spray tank; that is, from the time the pesticide is added to the water in the tank to the time the spray has dried on the foliage. If your water source is alkaline, addition of a buffering agent to the spray preparation is an easy and economical way to guarantee maximum results from your pesticide applications.

If you are interested in Buffer, pls feel free to contact email: info@profirst.cn

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Keywords:Organic Silicone Agricultural Additive, Polyether Modified Trisiloxane, Organic Silicone Surface Agent, Wetter, Spray Regulator, Pests, Rice, Rice Weevil,
Aggregate Sheath Spot Of Rice, Piricularia Leaf Spot Of Rice, Brown Spot, Bipolaris Oryzae, Panicle Mite, Cockspur Grass, Cyperus Difformis, Forb Steppe,
Banded Sclerotial Blight, Tea, Tea Mosquito Bug, Helopeltis Antonii, Empoasca Flavescens, Tea Green Leafhopper, Tea Tortrix-Caterpillar,
Homona Coffearia, Tea Flush Worm, Cydia Leucostoma, Scarlet Tea Mite, Brevipalpus Phoenicis, Soybean, Phytophthora, Rhizoctonia,
Soybean Aphids, Fusarium Wilt, Wheat, Wheat Aphids, Armyworms On Wheat, Greenbugs, Cereal Leaf Beetle,
Wheat Stripe And Stem Rust, Corn, Root-Knot Nematode, Gray Leaf Spot, Northern Corn Leaf Blight,
Sweet Corn Rust, Aspergillus Flavus, Aspergillus Ear Rot