Skip to main content

Table 8 Parous rate of An. gambiae s.l. in IRS and control communes after the 2019, 2020 and 2021 IRS campaign

From: Did the prolonged residual efficacy of clothianidin products lead to a greater reduction in vector populations and subsequent malaria transmission compared to the shorter residual efficacy of pirimiphos-methyl?

Communes

Period (Insecticides)

Nb of An. gambiae s.l. dissected

Nb of parous

Parous rate (%)

p-value

Kandi + Gogounou (under IRS in Alibori)

2019 (PM 300CS)

427

175

41.0

2020 (Clo + Del)

237

106

44.7

0.39

2021 (Clo 50WG)

317

243

76.7

 < 0.0001

Djougou + Copargo (under IRS in Donga)

2019 (PM 300CS)

470

196

41.7

2020 (Clo + Del)

343

276

80.5

 < 0.0001

2021 (Clo 50WG)

212

174

82.1

 < 0.0001

  1. p-value: comparison of the parous rate of An. gambiae s.l. between the treated (Test used: Chi-square test); Nb: Number; PM: pirimiphos methyl; CS: capsule suspensions; WG: Water dispersible granules; Clot + Del: mixture clothianidin 500 g/kg + deltamethrin 62.5 g/kg; Clo 50WG: clothianidin 50 WG