Toxicity and spraying schedules of a biopesticide prepared from Piper guineense against two cowpea pests

Oparaeke, A. M.

doi:10.17221/2251-pps

Cited by 11 publications

(10 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Also, garlic leaf lectin (ASAL) has been found to have detrimental effect on growth and survival of two important homopteran insect pests, Lypaphis erysimi, commonly known as aphids and Dysdercus cingulatus (red cotton bug) (Bandyopadhyay et al, 2001). Neem, garlic and ginger extracts contain insecticidal properties that are lethal to a wide range of insects (Oparaeke, 2007). A mechanism of garlic extract effects based on the presence of an olerisine substance, a volatile oil and the antifeedant characters of garlic due to the presence of an essential oil (allyl propyl disulphide and daily disulphide) (Ben et al, 2010 andGhanim andAbdel Ghani, 2014) ).…”

Section: Discussionmentioning

confidence: 99%

EFFECT OF TWO PLANT EXTRACTS AND FOUR AROMATIC OILS ON Tuta absoluta POPULATION AND PRODUCTIVITY OF TOMATO CULTIVAR GOLD STONE

Hussein

Hak

et al. 2015

Journal of Plant Protection and Pathology

View full text Add to dashboard Cite

Plants extracts and essential oils were used in pest management in different crops against various pests. Under field conditions, we examined the effect of two plant extracts and four essential aromatic oils on the response of tomato hybrid cultivar Gold Stone to Tuta absoluta infestation. Also, their effects on some growth characteristics of tomato plants as well as their total phenolic compounds and total flavonoids contents were explored in the two successive summer seasons of 2011 and 2012. The treatments were Lemon grass extract (Cymbopogon citratus) at 25 gm /L., Garlic extract (Allium sativum) at 5ml / L., Eucalyptus oil (Eucalyptus spp.) at 0.5%, Rue oil (Ruta graveolens) at 0.5%, Anise oil (Ocimum basilicum) at 0.5%, Basil oil (Pimpinella anisum) at 0.5%. Ethyl acetate (Solvent) and tap water (Control). The plants were sprayed three times at two week intervals starting after 40 days from transplanting. All treatments reduced population density of Tuta absoluta significantly. The highest reduction was recorded by garlic extract followed by lemon grass extract and basil oil. Lemon grass extract significantly increased Lascorbic acid (Vitamin C) contents in tomato fruits followed by basil oil. Also, garlic extract increased the yield of tomato significantly followed by eucalyptus oil in the first season while in the second season, anise oil followed by garlic extract were insignificantly increased the fruit yield than the other tested treatments. On the other hand, garlic extract recorded the highest values of total phenolic compounds (TPCs) and total flavonoids (TFs) in unifested and infestedtreated tomato leaves.

show abstract

Section: Discussionmentioning

confidence: 99%

EFFECT OF TWO PLANT EXTRACTS AND FOUR AROMATIC OILS ON Tuta absoluta POPULATION AND PRODUCTIVITY OF TOMATO CULTIVAR GOLD STONE

Hussein

Hak

et al. 2015

Journal of Plant Protection and Pathology

View full text Add to dashboard Cite

show abstract

“…The higher concentrations (10% and 20% w/v) and more frequent applications (4 and 6 week) significantly reduced the numbers of the two insect pests compared to the untreated control. Pod damage was significantly reduced and grain yields consequently increased in treated plots compared with the untreated control 23 . Traditional Indian tree neem oil is also a good insect-pest protectant.…”

Section: Resultsmentioning

confidence: 91%

Assessing the toxicity of NSO (Neem Seed Oil) and NSKP (Neem Seed Kernal Powder) to a bruchid

2017

JCBSC

View full text Add to dashboard Cite

“…The highest mortality (complete control) (100%) was recorded at the doses of 0.25 and 0.5 g of black pepper powder /50 g rice after 14 and 21 days post exposure. In this concern, Oparaeke (2007) found that the higher concentrations of an extract from West African black pepper, Piper guineense (10% and 20% w/v) and more frequent applications (4 and 6/week) significantly (P < 0.05) reduced the numbers of two insect pests (Vigna unguiculata and Maruca vitrata as two pests of postflowering period of cowpea) compared to the untreated control in two cropping seasons. Pod damage was significantly reduced and grain yields consequently increased in treated plots compared with the untreated control.…”

Section: Preparation Of the Botanical Dustsmentioning

confidence: 91%

Biological Performance of Certain Botanical Fine Dusts, Ash and Sulfur Powders against the Rice Weevil Sitophilus oryzae (L.) (Coleoptera: Curculionidae)

2011

Alexandria Science Exchange Journal: An International Quarterly

View full text Add to dashboard Cite

Five botanical fine dusts, ash and sulfur powders were tested for their biological performance activity against the rice weevil Sitophilus oryza. Their toxicities and delayed effect on the treated insect were determined. The insect was exposed to treated rice grain with each of the evaluated materials and bioassayed for different intervals extended form 3 to 30 days. The insecticidal activity was expressed in terms of the adult insects-mortality due to the contact with the tested materials. The effect of these materials on the inspected damage in rice grains and/or resulted F 1 progeny post-treatment had been investigated and expressed in terms of productivity inhibition percentage (PIP).The complete control of treated insects (100% kill) was recorded at the doses of 0.25 and 0.5 g of black pepper fine dust/50 g rice grains after 21 and 14 days post exposure, consequently. Furthermore, at the higher dose of 0.5 g material/50 g rice grains, camphor and black pepper pronounced complete control of the exposed adult-insects giving 100% kill after an exposure period of 30 days, while Latania fine dust was the least efficient tested material.The results were also confirmed by the deduced dependent positive strong relationship between the recorded insect mortality and the time needed to cause 50 % kill of the exposed insects (LT 50 ) at all the different used doses. Based on LT 50 values, the superior insecticidal effect was recorded for black pepper, followed by orange peel, then camphor and the other tested materials. Meanwhile, clove and Latania fine dusts were the least efficient materials at all used doses (w/w).The results proved that camphor fine dust was the most potent material in preventing grains perforation and reducing the damage that can be caused by the adultweevils of S. oryzae followed by black pepper fine dust. Although, the clove fine dust was less toxic, it showed a potent delayed and completely inhibited the raise of F 1 progeny post-parents treatment (100%) at its higher tested dose of 0.5 g powder /50 g rice. There was also a good correlation between the insecticidal activity of black pepper fine dust, either picked up or contacted the exposed insects and its effect on prevention or reduction of grains damage and/or its ability in suppressing the raised individuals of F 1 progeny.

show abstract

Toxicity and spraying schedules of a biopesticide prepared from Piper guineense against two cowpea pests

Cited by 11 publications

References 15 publications

EFFECT OF TWO PLANT EXTRACTS AND FOUR AROMATIC OILS ON Tuta absoluta POPULATION AND PRODUCTIVITY OF TOMATO CULTIVAR GOLD STONE

EFFECT OF TWO PLANT EXTRACTS AND FOUR AROMATIC OILS ON Tuta absoluta POPULATION AND PRODUCTIVITY OF TOMATO CULTIVAR GOLD STONE

Assessing the toxicity of NSO (Neem Seed Oil) and NSKP (Neem Seed Kernal Powder) to a bruchid

Biological Performance of Certain Botanical Fine Dusts, Ash and Sulfur Powders against the Rice Weevil Sitophilus oryzae (L.) (Coleoptera: Curculionidae)

Contact Info

Product

Resources

About