![]() ![]() Is there an economic threshold available?.What is the cost (product and application)?.Are the withholding periods compatible with harvest times or future paddock use?.Is the product compatible with local water and potential product mixes?.Are conditions suitable for maximum uptake.Is the weather (temperature, humidity, wind speed etc.) suitable for application?.Users have a community and industry responsibility to minimise environmental, animal, surrounding crop and human contamination. Many older products (particularly organophosphates and carbamates) are extremely toxic (schedule S7) poisons, and should be handled with caution. Going soft early with highly selective products will conserve natural enemies and reduce the risk of flaring other pests. Are there other environmental or human toxicity risks?.Is there potential for crop sensitivity?.Are there label instructions regarding bees?.Is there a likelihood of late flaring or secondary pest emergence?.Are natural enemy (beneficial) species present, and are they susceptible to the product?.Ensure that you are aware of regional recommendations. Insecticide Resistance Management Strategy (IRMS) may place restrictions on the number of sprays per crop or the timing of applications. Some newer generation ´soft´ insecticides only become ´activated´ once inside an insect´s gut.Īvoid consecutive sprays of products with a similar MOA. Pesticides act either directly at the time of spraying, indirectly via dried spray residues or may require ingestion by the pest. Is there potential for multi-species activity (impact on more than one pest)?.Is there potential for cross-resistance between similar MOAs?.What is the mode of action (MOA) on the target pests?.Is the product systemic and move (translocate) within the plant?.How does the target pest receive the dose?.This approach conserves natural enemies already present, and reserves more effective products for later crop stages when pest attack is more likely to result in yield losses. If the crop is at a stage tolerant to damage, or there is time for compensatory yield to set and grow to maturity, no action or partial control by a biopesticide (or innundative beneficial release) may be sufficient. Physical barriers, such as pupal cases, dense crop canopies, or pest stages that are protected by plant structures may result in reduced efficacy. Will the crop stage prevent optimal control?.Is there potential for compensatory growth post-damage?.How susceptible is the pest stage(s) present to the product?.How susceptible is the crop stage to pest damage?.How attractive is the crop stage to pests?.Factors to consider when selecting insecticides include: 1. Note: Only use products that are registered for the pest and crop, or have a valid current off-label permit. However, unnecessary spraying or choosing the wrong pesticides can flare secondary pests, hasten the development of pesticide resistance, contaminate the harvested product, increase operating costs and reduce profitability. When confronted with an above-threshold pest population, chemical intervention is often needed. ![]()
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