Mating competitiveness of sterile genetic sexing strain males (GAMA) under laboratory and semi-field conditions: Steps towards the use of the Sterile Insect Technique to control the major malaria vector Anopheles arabiensis in South Africa

Table 2 Fecundity and fertility of An. arabiensis females mated with males irradiated at different doses and their corresponding controls

Treatment	Mean % of females induced to lay eggs	Mean % of females laying eggs ± SD	Mean no. of eggs laid per female ± SD (95 % CI)	Mean % egg hatch rates ± SD (95 % CI)
Baseline Control	21.7	57.7 ± 6.4^a	66.3 ± 48.6 (49.9 - 82.7)^a	64.9 ± 34.0 (51.2 - 78.6)^a
Non-separation Control	22.7	40.4 ± 24.8^a	48.5 ± 31.1 (35.6 - 61.3)^a	28.8 ± 13.9 (18.1 - 39.5)^b
Separation Control	21.7	37.4 ± 28.8^a	57.2 ± 41.2 (38.9 - 75.5)^a	26.7 ± 13.9 (20.0 - 33.4)^b
70 Gy	20.3	32.8 ± 23.6^a	76.7 ± 67.2 (46.1 - 107.3)^a	1.5 ± 1.9 (0.3 - 2.7)^c
75Gy	21.3	23.6 ± 5.6^a	49.4 ± 39.5 (27.5 - 71.3)^a	0.6 ± 1.1 (0.3 - 1.6)^c
80 Gy	22.3	23 ± 15.7^a	50.1 ± 39.6 (28.1 - 72.0)^a	0.9 ± 1.9 (0.5 - 2.4)^c
100 Gy	20.7	28.6 ± 18.8^a	36.7 ± 38.3 (16.3 - 57.1)^a	0.5 ± 1.1 (1.1 - 2.2)^d

Within columns, values followed by different lower case letters are statistically different (P < 0.05; one way ANOVA)
NB: Baseline control refers to newly emerged AMAL females mated with GAMA males without any handling at the pupal stage. Non-separation control refers to newly emerged unirradiated GAMA males mated with fertile AMAL females. Separation control refers to unirradiated GAMA males mated with fertile AMAL females after they were separated manually at the pupal stage and transported to the irradiation facility and back to the insectary

ISSN: 1756-3305