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The European Chemicals Agency classified metolachlor as a suspected human carcinogen (Carcinogen category 2) in 2022. [5] The United States Environmental Protection Agency (US EPA) has classified Metolachlor as a Group C, possible human carcinogen, based on liver tumors in rats at the highest dose tested (HDT).
Ultra-low volume (ULV) application of pesticides has been defined as spraying at a Volume Application Rate (VAR) of less than 5 L/ha for field crops or less than 50 L/ha for tree/bush crops. VARs of 0.25 – 2 L/ha are typical for aerial ULV application to forest or migratory pests.
A manual backpack-type sprayer Space treatment against mosquitoes using a thermal fogger Grubbs Vocational College students spraying Irish potatoes. Pesticide application is the practical way in which pesticides (including herbicides, fungicides, insecticides, or nematode control agents) are delivered to their biological targets (e.g. pest organism, crop or other plant).
To ensure that application rates do not exceed limits which may be toxic to non-target vertebrates, the US proposes a maximum application rate of 0.1 to 0.6 pounds per acre (0.11 to 0.67 kg/ha) of active ingredient per season of agricultural land, differentiating between different crop types. [14] In China, the maximum dose is lower than in the US.
The rate of predation upon the prey is assumed to be proportional to the rate at which the predators and the prey meet; this rate is evaluated as xy, where x is the number of prey, y is the number of predator. This is a typical example of the law of mass action.
where A and B are reactants C is a product a, b, and c are stoichiometric coefficients,. the reaction rate is often found to have the form: = [] [] Here is the reaction rate constant that depends on temperature, and [A] and [B] are the molar concentrations of substances A and B in moles per unit volume of solution, assuming the reaction is taking place throughout the volume of the ...
The NWSL on Monday announced schedule details for its 2025 season, breaking down key dates for trades, roster compliance, the regular season, and the playoffs.
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