Assessing numbers of H. hebetor adults to be released to cover an area of 3km radius

This experiment was carried out in the Zinder region in a set of 12 villages in three successive seasons in 2015, 2016, and 2017 with a different set of 12 villages for each season. Each year, the selected twelve villages were divided into four groups of three villages and assigned to one of the following treatments: 1) Three villages, each supplied with 400 H. hebetor adults; 2) Three villages, each supplied with 800 H. hebetor adults; 3) Three villages, each supplied with 1600 H. hebetor adults; and 4) Three “control villages” that did not receive any parasitoids