Harold Van der Valk

Harold Van der Valk
Country	Netherlands
Organizations:	Falconsult
Titles:	Director
Focal areas:
Biological Control Ecology Environmental Science International Development Management Monitoring Pesticides Policy Sustainability Science Toxicology
Focal species:
Desert locust (Schistocerca gregaria) Italian locust (Calliptamus italicus) Migratory locust (Locusta migratoria) Moroccan locust (Dociostaurus maroccanus) Senegalese grasshopper (Oedaleus senegalensis)

Resources by this author

Name	Year published	Resource link	Author
Practical Guidelines on Pesticide Risk Reduction for Locust Control in CCA	2019		FAO Locust Watch in Caucasus and Central Asia, Food and Agriculture Organization of the United Nations, Harold Van der Valk

Select publications from this author

• Danfa, A., Van Der Valk, H.C.H.G., 1999. Laboratory testing of Metarhizium spp. and Beauveria bassiana on Sahelian non-target arthropods. Biocontrol Science and Technology 9:187–198. https://doi.org/10.1080/09583159929776
• Van Der Valk, H.C.H.G., Niassy, A., Bèye, A.B., 1999. Does grasshopper control create grasshopper problems? -Monitoring side-effects of fenitrothion applications in the western Sahel. Crop Protection 18:139–149. https://doi.org/10.1016/s0261-2194(99)00012-5
• Van Der Valk, H., 1998. The impact of locust and grasshopper control on beneficial arthropods in West Africa. In: Ecotoxicology, pp. 372-380. Springer US, Boston, MA. https://doi.org/10.1007/978-1-4615-5791-3_40