Figure 3.

(A) Halyomorpha halys egg hatch over time as a function of overflooding with a five-to-one ratio of sterile to untreated virgin males (filled grey centre), compared with presumptively fully-sterile × virgin crosses (thin bordered square) and untreated controls (solid bordered square), with 15 virgin females per cage. The line shows the average fertility (54%) for parental male irradiation at 16 Gy. The results on the right (B) are from Experiment 2 (Figure 2), showing the spread of egg hatch values from 0 and 16 Gy treatments.