agriculture Review Alternative Strategies for Controlling Wireworms in Field Crops: A Review Sylvain Poggi 1,* , Ronan Le Cointe 1, Jörn Lehmhus 2, Manuel Plantegenest 1 and Lorenzo Furlan 3 1 INRAE, Institute for Genetics, Environment and Plant Protection (IGEPP), Agrocampus Ouest, Université de Rennes, 35650 Le Rheu, France;
[email protected] (R.L.C.);
[email protected] (M.P.) 2 Institute for Plant Protection in Field Crops and Grassland, Julius Kühn-Institute, 38104 Braunschweig, Germany;
[email protected] 3 Veneto Agricoltura, 35020 Legnaro, Italy;
[email protected] * Correspondence:
[email protected] Abstract: Wireworms, the soil-dwelling larvae of click beetles (Coleoptera: Elateridae), comprise major pests of several crops worldwide, including maize and potatoes. The current trend towards the reduction in pesticides use has resulted in strong demand for alternative methods to control wireworm populations. This review provides a state-of-the-art of current theory and practice in order to develop new agroecological strategies. The first step should be to conduct a risk assessment based on the production context (e.g., crop, climate, soil characteristics, and landscape) and on adult and/or larval population monitoring. When damage risk appears significant, prophylactic practices can be applied to reduce wireworm abundance (e.g., low risk rotations, tilling, and irrigation). Additionally, curative methods based on natural enemies and on naturally derived insecticides are, respectively, under development or in practice in some countries. Alternatively, practices may target a reduction in crop damage instead of pest abundance through the adoption of selected cultural practices (e.g., Citation: Poggi, S.; Le Cointe, R.; Lehmhus, J.; Plantegenest, M.; Furlan, resistant varieties, planting and harvesting time) or through the manipulation of wireworm behavior L.