Spinosad’s quality features including: unique chemical structure and action mechanism, have very high activity on pests which affecting the economic, shorter half-life, degraded completely, for mammals, birds, fish, and even most of the beneficial insects have broad security limits.
In the existing insecticides, products can set so many benefits in one like spinosad is unique, so that spinosad was generally accepted and widely used in the world. Usingspinosad products should be properly evaluate its position and role in insecticide resistance management, and pay close attention to the emergence and development of pest resistance to spinosad, avoid or delay producing resistance, to extend their life.
Integrated pest management advocates try to use less chemical pesticides, give full play to the role of natural enemies of pests and natural control, and pay attention to the organic integration of a variety of control measures. On the use of chemical pesticides also requires efficient, low toxicity, low-residue, friendly to the environment and so on. Spinosad has the above desired characteristics, so that be consistent with the strategy of integrated pest management, has a broad application space. Spinosad’s high activity on confrontational Lepidoptera larvae makes it high hopes for insecticide resistance management. Spinosad had no significant cross-resistance with other types of pesticides also the extremely favorable factors make it can be used in integrated pest management and pest resistance management. Spinosad has been proven that has good activity on lepidoptera, thysanoptera, diptera, coleoptera and other purposes pest, but sometimes the control effect to all kinds of pest is not the best, for example, the diamondback moth efficacy trials, the effect is less than meilingmycin, the control effect to mites, leafhoppers, planthoppers is also inferior to these pests insecticides, the reason why spinosad plays an important role in integrated pest management and resistance management is because of its safety, especially the wide area security show up in predatory natural enemies of the pest.
Due to spinosad’s unique mode of action, different from various pesticides, and no cross-resistance with other types of pesticides, so generally agreed that the potentiality of spinosad produce resistance is very low, a large number of research reports also proved this point.
A profound understanding of spinosad temperament is the premise to play its excellent properties. Spinosad to a variety of pests have a better control effect, but it does not exhibit good activity in preventing and control certain pests (such as leafhoppers, planthoppers, etc.), and the persistence of spinosad is relatively short, these should be pay attention to while using, do not because of its ineffective to blindly increase the dose. Spinosad’s killing effect to natural enemies is much smaller than other types of pesticides, but it still exists a certain selectivity between natural predators and parasitic natural enemies, it is relative safety to predatory natural enemies, has higher toxicity to parasitic natural enemies. Therefore, apply spinosad in the field, should have some knowledge in types of natural enemies populations in order to better protect predators. Pest resistance to spinosad have appeared in the laboratory and in the field, so that use spinosad mixed with other insecticides need to pay particular attention to do a good job on monitoring the resistance of various pests, so that can better play the role of spinosad in integrated pest management and pest resistance management.
Source:http://www.cospcn.com
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