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Table 7 Average larval (L3) load of blood-fed and nonblood-fed Aedes aegypti female mosquitoes exposed for 1 h to microfilaremic dogs infected with Dirofilaria immitis incubated for 16 days prior to dissection

From: Blocking the transmission of heartworm (Dirofilaria immitis) to mosquitoes (Aedes aegypti) by weekly exposure for one month to microfilaremic dogs treated once topically with dinotefuran-permethrin-pyriproxyfen

Control

DPPa

Exposure Day

Dissection Day

Fed Mosquitoesb

Unfed Mosquitoes

L3/Fed Mosquito

L3/Unfed Mosquito

Fed Mosquitoes

Unfed Mosquitoes

L3/Fed Mosquito

L3/Unfed Mosquito

−7

9

24

22

8.3

0.8

22

12

8.2

0.0

7

23

29

13

11.1

0.5

–c

–

–

–

14

30

19

15

14.6

3.1

0

1

0

0.0

21

37

22

26

12.0

0.3

0

1

0

0.0

28

44

16

Nad

18.3

0

0

0

Na

Na

  1. aDPP: dinotefuran + permethrin + pyriproxyfen (Vectra® 3D)
  2. bCumulated number of surviving mosquitoes (fed or unfed) dissected after the 16-day incubation period
  3. cNo blood-fed or surviving mosquitoes on treated dogs after exposure on Day 7
  4. dNo surviving mosquitoes after the 16-day incubation period
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Parasites & Vectors

ISSN: 1756-3305

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