Controlling chewing pests in vegetables

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Success™ Neo contains spinetoram, an active ingredient derived from the metabolite of a naturally occurring soil bacterium. It is registered for the control of caterpillar pests and western flower thrips in a wide variety of crops, including: fruit, herbs, ornamentals, vegetables, canola, forage brassicas and forestry.

Success Neo is the Australian vegetable grower’s favourite control option for chewing pests. Although it is no longer the newest product on the market, it still has a unique mode of action which controls insects resistant to other chemicals. This makes Success Neo an integral part of any insect resistance management program.

Success Neo also has an excellent safety profile – it is safe to most beneficial insects and predatory mites making it ideally suited to Integrated Pest Management (IPM) programs. It has a large margin of safety for users, consumers and the environment as well as short withholding periods.

For many vegetable growers, the ability of Success Neo to control thrips, alongside other chewing pests like diamondback moth and other caterpillars, is invaluable. Thrips not only cause damage through direct feeding, they also spread Tomato spotted wilt virus (TSWV), a major disease of cultivated crops in Australia. TSWV is vectored (i.e. transmitted by pest-to-plant) by thrips. Western flower thrips (WFT) (Frankliniella occidentalis) is the most common vector, but tomato thrip (F. schultzei) and onion thrip (Thrips tabaci) are also documented as spreading the disease.

Dow AgroSciences commissioned a trial in northern Queensland to investigate the benefits of using Success Neo for insect pest control in field-grown tomatoes. Success Neo, through control of thrips, prevented significant transmission of the TSWV as shown in the image.

John Gilmour, Horticulture Business manager at Dow AgroSciences cautions that whilst growers should use Success Neo to control thrips it is imperative that applications of Success Neo are just one part of a program which incorporates cultural controls as well as sprays from different Modes of Action (MOA) where possible. John warns “care must be taken to preserve this chemistry for many years to come. It is essential to always follow the product label instructions with regard to the use rate, frequency of application and spray guidelines.” John suggests that rather than just relying on a spray program growers should also use cultural controls stating that “removing alternative hosts (weeds and old crops), mowing flowering inter-rows, installing physical exclusion barriers or even changing the cropping mix are all strategies that can be employed”. Above all John suggests that rotation between products with alternate modes of action registered to control thrips (such as Movento) will help to preserve those products which are still effective.