Search. Read. Cite.

Easy to search. Easy to read. Easy to cite with credible sources.

Research Article
Insecticidal Effects of Capsicum annuum on Aquatic Stages of Anopheles gambiae Giles under Laboratory Conditions

G.A. Foko Dadji, J.L. Tamesse and J. Messi

Journal of Entomology, 2007, 4(4), 299-307.

Abstract

The developing trend of resistance in Anopheles gambiae toward synthetic mosquitocidal agents makes their management extremely difficult. A new approach in the fight against malaria vectors consist of using native plants with insecticidal value. Two varieties of Capsicum annuum the red and the yellow varieties were evaluated for their toxicities to An. gambiae. Ovicidal, larvicidal and pupal mortality effects of C. annuum fruit have been noted. The results showed that for 60 eggs, embryonic mortality was 100% when treated with the yellow variety of C. annuum. In addition, this variety was also detrimental to the embryonic development of An. gambiae. In contrast, at a concentration of 1 g L-1 of the red variety of C. annuum 19% of egg-hatched and 93% of total mortality rate from eggs to emergence. At a concentration of 0. 25 g L-1 of the red variety of C. annuum 44% of egg-hatched and 67% of total mortality rate from eggs to emergence. The embryonic development duration and first instars larvae development duration were longer (82 and 77 h, respectively) in media containing 1 g L-1 of C. annuum. The total mortality rate and the quantity of C. annuum in breeding media were highly correlated (r = 0.964; p< 0.01). The number of males, females and the number of eggs laid per female were negatively correlated with the quantity of C. annuum in the breeding medium. This study shows that C. annuum fruits are significantly toxic on eggs, larval and pupal stages of An. gambiae. Future tests in the field will help determine if C. annuum may be effective for malaria control in tropical region.

ASCI-ID: 48-138

Cited References Fulltext

Related Articles


Insecticidal and Repellency Effects of Smoke from Plant Pellets with or Without D-allethrin 90 EC Against Three Medical Insects

Journal of Entomology, 2006, 3(1), 9-15.

Effect of Essential Oils of Six Local Plants Used Insecticide on Adults of Anopheles gambiae, Giles 1902

Journal of Entomology, 2007, 4(6), 444-450.

Adulticidal Effects of Essential Oils Extracts from Capsicum annuum (Solanaceae) Piper nigrum (Piperaceae) and Zingiber officinale (Zingiberaceae) on Anopheles gambiae (Diptera-Culicidea), Vector of Malaria

Journal of Entomology, 2011, 8(2), 152-163.

A Dual Effect for the Black Seed Oil on the Malaria Vector Anopheles gambiae: Enhances Immunity and Reduces the Concomitant Reproductive Cost

Journal of Entomology, 2007, 4(1), 1-19.

Adulticidal Effects of Essential Oils Extracts from Capsicum annuum (Solanaceae) Piper nigrum (Piperaceae) and Zingiber officinale (Zingiberaceae) on Anopheles gambiae (Diptera-Culicidea), Vector of Malaria

Journal of Entomology, 2011, 8(2), 152-163.

Identification and Discrimination of the Developmental Stages of Two Mosquito Vectors, Aedes caspius and Culex pipiens by Using Cuticular Hydrocarbons Analysis

Journal of Entomology, 2019, 16(3), 98-107.

Cited By


Adulticidal effects of essential oils extracts from Capsicum annuum (solanaceae) Piper nigrum (piperaceae) and Zingiber officinale (zingiberaceae) on Anopheles gambiae (Diptera-Culicidea), vector of malaria.

Journal of Entomology, 2011, 8(2), 152. DOI: 10.3923/je.2011.152.163