Natural control of tobacco strips investigated in leeks and onions in the Netherlands

Published 2021년 8월 23일

Tridge summary

A study by the 'Robust cultivation with biodiversity' public-private partnership has found that tobacco strips, which have many natural enemies, benefit from a cultivation system that supports a stable and large population of these natural enemies. This can be achieved by maintaining sufficient organic matter in the soil, incorporating permanent landscape elements, and diversifying the cropping plan with rest and flowering crops. The study also recommends limiting the use of broad-spectrum chemical pesticides and monitoring the population growth of tobacco strips in the Netherlands. No definitive guideline has yet been established for the allowable number of thrips before intervention is necessary.

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Original content

The public-private partnership 'Robust cultivation with biodiversity' has conducted a literature study on tobacco strips. The field trials are the continuation of this research. Parties involved in the study are the Louis Bolk Institute, the Arable Farming Sector Organization, Agrifirm and CZAV. Tobacco Strips has many natural enemies such as parasitic wasps, hoverflies and lacewings, ladybugs, spiders, rove beetles and mites. It is therefore important to develop a cultivation system in which these species can produce a stable and sufficiently large population. Organic matter When the soil contains sufficient organic matter and permanent landscape elements are present, a positive influence on natural enemies is expected. Expanding the cropping plan with rest crops and flowering crops could also make a good contribution. The same applies to the use of soil cover, green manures and flowering field margins. The report recommends limiting the use of broad-spectrum chemical ...

Source: Nieuwe Oogst