Garlic is known to be a plant with few pests; however, this depends on the culture conditions and the population level. In the organic system, which is more widely practiced recently, the pests have multiplied both in terms of species and numerical quantity. Garlic itself is used as a bio-insecticide, however there are pests that can cause serious damage to crops if control measures are not applied. Through this work, we aimed to evaluate the pest species present in a private garlic culture in an organic system practiced for 2 years, on an area of 0.5 hectares. Analysis of the range of species but also the number of individuals were analyzed, as well as damages and control measures adapted to each identified species. Among the relevant pests identified, we mention the following: wireworms (Agriotes spp., Coleoptera: Elateridae) and nematodes (Ditylenchus dipsaci, Tylenchida: Anguinidae). Nematodes were by far the most problematic, their damage being evident in 40% of the plants analyzed and their number quite high. Control measures were chosen so that they fall into the category of non-polluting and applicable for the organic system. Thus, the planting of marigold plants and the application of commercial bio-nematocides are among those used. Their effect was positive, reducing damages by 25% in the second year. Conclusively, it can be mentioned that garlic crops affected by nematodes can be protected preventively if monoculture is avoided and the new crop is installed at a distance from the old one, frequent monitoring is done, repellent plants are interspersed and organic substances are applied for signaling.

pest nematodes, garlic, monitoring, control, bio-nematocides

agronomy

Presentation: poster