Efficacy of attractive toxic sugar baits (ATSB) against Aedes albopictus with garlic oil encapsulated in beta-cyclodextrin as the active ingredient

Amy Junnila, Edita E. Revay, Gunter C. Müller, Vasiliy Kravchenko, Whitney A. Qualls, Rui de Xue, Sandra A. Allen, John C Beier, Yosef Schlein

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We tested the efficacy of attractive toxic sugar bait (ATSB) with garlic oil microencapsulated in beta-cyclodextrin as active ingredient against Aedes albopictus in suburban Haifa, Israel. Two three-acre gardens with high numbers of Ae. albopictus were selected for perimeter spray treatment with ATSB and ASB (bait containing no active ingredient). Baits were colored with food dye to verify feeding of the mosquitoes. The mosquito population was monitored by human landing catches and sweep net catches in the surrounding vegetation. Experiments lasted for 44 days. Treatment occurred on day 13. The mosquito population collapsed about 4 days after treatment and continued to drop steadily for 27 days until the end of the study. At the experimental site the average pre-treatment landing rate was 17.2 per 5 mins. Two days post-treatment, the landing rate dropped to 11.4, and continued to drop to an average of 2.6 during the following 26 days. During the same period, the control population was stable. Few sugar fed females (8-10%) approached a human bait and anthrone tests showed relatively small amounts of sugar within their crop/gut. Around 60-70 % of males caught near our human bait were sugar positive which may indicate that the males were feeding on sugar for mating related behavior. From the vegetation treated with the toxic bait, we recovered significantly fewer (about 10-14%) males and females stained by ATSB than at the ASB-treated control. This may indicate that the toxic baits alter the resting behavior of the poisoned mosquitoes within the vegetation. Almost no Ae. albopictus females (5.2 ± 1.4) approached human bait after treatment with ATSB. It therefore appears that microencapsulated garlic oil is an effective pesticide against Ae. albopictus when used in an ATSB system.

Original languageEnglish (US)
Pages (from-to)195-200
Number of pages6
JournalActa Tropica
Volume152
DOIs
StatePublished - Dec 1 2015

Fingerprint

Aedes albopictus
Aedes
beta-cyclodextrin
Poisons
garlic
active ingredients
baits
sugars
oils
Culicidae
Population Dynamics
vegetation
Israel
allyl sulfide
betadex
Pesticides
Population
Coloring Agents
Food
gardens

Keywords

  • Aedes albopictus
  • ATSB
  • Culicidae
  • Israel
  • Mosquito control
  • Sugar feeding

ASJC Scopus subject areas

  • Parasitology
  • Infectious Diseases

Cite this

Efficacy of attractive toxic sugar baits (ATSB) against Aedes albopictus with garlic oil encapsulated in beta-cyclodextrin as the active ingredient. / Junnila, Amy; Revay, Edita E.; Müller, Gunter C.; Kravchenko, Vasiliy; Qualls, Whitney A.; Xue, Rui de; Allen, Sandra A.; Beier, John C; Schlein, Yosef.

In: Acta Tropica, Vol. 152, 01.12.2015, p. 195-200.

Research output: Contribution to journalArticle

Junnila, Amy ; Revay, Edita E. ; Müller, Gunter C. ; Kravchenko, Vasiliy ; Qualls, Whitney A. ; Xue, Rui de ; Allen, Sandra A. ; Beier, John C ; Schlein, Yosef. / Efficacy of attractive toxic sugar baits (ATSB) against Aedes albopictus with garlic oil encapsulated in beta-cyclodextrin as the active ingredient. In: Acta Tropica. 2015 ; Vol. 152. pp. 195-200.
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abstract = "We tested the efficacy of attractive toxic sugar bait (ATSB) with garlic oil microencapsulated in beta-cyclodextrin as active ingredient against Aedes albopictus in suburban Haifa, Israel. Two three-acre gardens with high numbers of Ae. albopictus were selected for perimeter spray treatment with ATSB and ASB (bait containing no active ingredient). Baits were colored with food dye to verify feeding of the mosquitoes. The mosquito population was monitored by human landing catches and sweep net catches in the surrounding vegetation. Experiments lasted for 44 days. Treatment occurred on day 13. The mosquito population collapsed about 4 days after treatment and continued to drop steadily for 27 days until the end of the study. At the experimental site the average pre-treatment landing rate was 17.2 per 5 mins. Two days post-treatment, the landing rate dropped to 11.4, and continued to drop to an average of 2.6 during the following 26 days. During the same period, the control population was stable. Few sugar fed females (8-10{\%}) approached a human bait and anthrone tests showed relatively small amounts of sugar within their crop/gut. Around 60-70 {\%} of males caught near our human bait were sugar positive which may indicate that the males were feeding on sugar for mating related behavior. From the vegetation treated with the toxic bait, we recovered significantly fewer (about 10-14{\%}) males and females stained by ATSB than at the ASB-treated control. This may indicate that the toxic baits alter the resting behavior of the poisoned mosquitoes within the vegetation. Almost no Ae. albopictus females (5.2 ± 1.4) approached human bait after treatment with ATSB. It therefore appears that microencapsulated garlic oil is an effective pesticide against Ae. albopictus when used in an ATSB system.",
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