Laboratory Evaluation of Pesticidal Activities of Hyptis suaveolens in Pest Management

Olotuah, O. F.

doi:10.3923/ijar.2013.101.106

Cited by 6 publications

(6 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Chukwujekwu et al [33] who investigated the anti-plasmodia diterpenoids from the leaves of H. suaveolens also recorded similar results. This result also coincides with findings of Olotuah [19] who conducted a laboratory evaluation of pesticidal activities of H. suaveolens against stored product pests Sitophilus oryzae, Sitophilus zeamais and Callosobruchus maculatus and recorded peak mortality at the highest concentration (100 mg/ ml) after total exposure period.…”

Section: Discussionsupporting

confidence: 90%

“…Capsicum chinensis (hot pepper) has both medicinal and insecticidal value and is used traditionally as medicine for treatment of various illnesses [18] including asthma, pneumonia, diarrhea, cramps, indigestion and toothache and it has been reported to possess repellent activity against insect pests of stored grains [19]. Extracts of Capsicum species have been proven as repellants to some species of some stored product beetles such as Sitophilus zeamais Motschulsky (Coleopteran: Curculinidae) and Tribolium castaneum (Herbst) (Coleopteran: Tenebrionidae) [20].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Capsicum chinensis (Hot Pepper) Powder Larvicidal Activity Against Mosquitoes Larvae in Lafia Local Government Area, Nasarawa State, Nigeria

Ombugadu¹,

Em²,

et al. 2020

BJSTR

View full text Add to dashboard Cite

Mosquitoes spread more diseases than other known arthropod and have shown resistance to conventional insecticides despite several control efforts, prompting the need to explore alternative control measures such as the use of bio-larvicides which are environmentally friendly. To this end, a study on larvicidal activity of the powder of Capsicum chinensis against mosquitoes larvae in Lafia Local Government Area, Nasarawa State, Nigeria was carried out through collection of wild field mosquitoes larvae from April to July 2018. Fresh Capsicum chinensis fruits were collected from farmlands and dried under room temperature and further processed to fine powder from which varying concentrations were used against the larvae. The larvae were exposed at 24, 48 and 72 hours, respectively. Anopheles gambiae larvae were susceptible (100% mortality) to the various concentrations of the powder at the end of the 72 hours exposure period while Culex quinquefasciatus were resistant (0% mortality). There was a very high significant difference (P < 0.0001) in mortality rate of An. gambiae larvae in relation to concentrations while there was no significant difference (P = 1) in mortality rate of Cx. quinquefasciatus across concentrations. LD 50 and LD 90 values for An. gambiae at 24 hours were 21.88mg/ mL and 52.48mg/mL respectively; 16.98mg/mL and 38.90mg/mL respectively at 48 hours and 13.80mg/mL and 30.19mg/mL respectively ay 72 hours. This study shows that Capsicum chinensis is a promising bio-larvicide for controlling An. gambiae. Also, Cx. quinquefasciatus may possibly require higher multiple doses of Capsicum chinensis to influence mortality.

show abstract

Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Capsicum chinensis (Hot Pepper) Powder Larvicidal Activity Against Mosquitoes Larvae in Lafia Local Government Area, Nasarawa State, Nigeria

Ombugadu¹,

Em²,

et al. 2020

BJSTR

View full text Add to dashboard Cite

show abstract

“…This result is in agreement with the finding of [44] who reported 100% larval mortality of acetone aerial extract of Hyptis suaveolens at the highest concentration of 1000 mg/L against the larvae of filarial vector Culex quinquefasciatus say after 48hours bioassay. Also, [45] recorded 100% mortality of stored product pests, Sitophilus oryzae, S. zeamais and Callosobruchus maculatus using methanol extract of H. suaveolens. A significant mortality of fourth instars larvae of Culex quinquefasciatus was also recorded with methanolic extract of Cliona celata with LC 50 =95.63 ppm and LC 90 =242.16ppm [46,47] reported also that methanol leaf extract of Acalypha indica was more lethal to the egg and larvae of An.…”

Section: Discussionmentioning

confidence: 97%

“…It is in accordance to the work of [30] who recorded absence of saponins in H. suaveolens in a study carried out on the larvae of Culex quinquefasciatus to test the larvicidal activity of the plant, but detected strong presence of alkaloids using ethanol as the solvent for extraction. Also, [31] reported that H. suaveolens was devoid of saponins but tannins (0.520%) and phenols (0.050%) were present. Researchers suchas [32] identified the above mentioned components except for saponins and alkaloids in eucalyptus and tamarind using methanol as solvent when tested against Anopheles gambiae.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Larvicidal Efficacy and GC-MS Analysis of Hyptis suaveolens Leaf Extracts against Anopheles Species

Dakum

Amajoh

Ombugadu

et al. 2021

IJBcRR

View full text Add to dashboard Cite

Mosquitoes are the most important group of insects in terms of public health importance, which transmit serious human diseases. The continuous application of synthetic insecticides to control these mosquitoes causes development of resistance in vector species, and an adverse effect on environmental quality and non-target organisms including human health. Therefore, the use of active toxic agents from plant extracts as alternative mosquito control strategy cannot be over emphasized, as these are non-toxic, easily available at affordable prices, biodegradable and show target - specific activities against different species of vector mosquitoes. The aim of the present study was to evaluate the larvicidal efficacy of the aqueous and methanol leaf extracts of H. suaveolens against the fourth instars larvae of Anopheles species. Standard WHO protocols was adopted for the larvicidal bioassay. Larvicidal activity was evaluated at concentrations of 200, 400, 600, 800 and 1000 mg/L. The larval mortality was observed after 24 and 48hours bioassay. The results are mean of three replicates and the mortalities recorded were subjected to chi-square test and probit analysis to determine median lethal concentrations (LC50). TheGC-MS analysis ofthe methanolic leaf extract of the plantrevealed the presence of twelve compounds on the chromatogram. Among the major compounds areOleic Acid (33.33%), Octadecanoic acid (13.52%), 1,3-Cyclohexadiene-1-methanol,alpha.,2,6,6-(10.42%), 1,3-Cyclopentanediol, trans (9.60%), n-Hexadecanoic acid (9.01%) and 4-Hepten-3-one, 4-methyl (7.0%).The phytochemical screening of the aqueous and methanol leaf extracts of the plant revealed the presence of Tannins, Terpenoids, Flavonoids, Steroids, Carbohydrates, Cardiac glycoside and resins. The LC50 values estimated were 316.22mg/Lfor methanol extract and 323.59 mg/L for aqueous extract. The differences between the two extracts were however not significantly different at P>0.05. The findings also revealed that mortality was concentration dependent and both extracts showed promising larvicidal activity against Anopheles species larvae. Therefore, the crude leaf extract of the plant is recommended to be used as alternative to synthetic larvicides and further research is needed to test the activity of the plant on non-target organisms.

show abstract

Assessment of larvicidal and genotoxic potentials of extracts of Hyptis suaveolens against Culex quinquefasciatus based on enzyme profile and RAPD-PCR assay

et al. 2022

View full text Add to dashboard Cite

Laboratory Evaluation of Pesticidal Activities of Hyptis suaveolens in Pest Management

Cited by 6 publications

References 2 publications

Capsicum chinensis (Hot Pepper) Powder Larvicidal Activity Against Mosquitoes Larvae in Lafia Local Government Area, Nasarawa State, Nigeria

Capsicum chinensis (Hot Pepper) Powder Larvicidal Activity Against Mosquitoes Larvae in Lafia Local Government Area, Nasarawa State, Nigeria

Larvicidal Efficacy and GC-MS Analysis of Hyptis suaveolens Leaf Extracts against Anopheles Species

Assessment of larvicidal and genotoxic potentials of extracts of Hyptis suaveolens against Culex quinquefasciatus based on enzyme profile and RAPD-PCR assay

Contact Info

Product

Resources

About