scholarly journals The Effects of Non-Host Plant Extracts on the Oviposition Deterrent and Ovicidal Activity of Conopomorpha sinensis Bradley (Lepidoptera: Gracillariidae)

2019 ◽  
Vol 102 (2) ◽  
pp. 298
Author(s):  
Qiong Yao ◽  
Yizhi Dong ◽  
Wenjing Li ◽  
Bingxu Chen
Keyword(s):  
Host Plant ◽  
Plant Extracts ◽  
Oviposition Deterrent ◽  
Ovicidal Activity

Oviposition-deterrent, ovicidal, and repellent activities of indigenous plant extracts against Anopheles subpictus Grassi (Diptera: Culicidae)

2009 ◽  
Vol 105 (6) ◽  
pp. 1567-1576 ◽  
Author(s):  
G. Elango ◽  
A. Bagavan ◽  
C. Kamaraj ◽  
A. Abduz Zahir ◽  
A. Abdul Rahuman
Keyword(s):  
Plant Extracts ◽  
Oviposition Deterrent ◽  
Anopheles Subpictus ◽  
Indigenous Plant

The Bioassay of Insect Feeding Tokens

1965 ◽  
Vol 97 (8) ◽  
pp. 830-833 ◽  
Author(s):  
P. Harris ◽  
A. I. Mohyuddin
Keyword(s):  
Host Plant ◽  
Plant Extracts ◽  
Filter Paper ◽  
Vacuum Infiltration ◽  
Insect Feeding

AbstractThe acceptability of host plant extracts on pith, charred filter paper, and an agar diet, and vacuum infiltrated into lettuce leaves was compared on three species of Lepidoptera and two of Coleoptera. The vacuum infiltrated lettuce was eaten by two of the Lepidoptera and it was the only method acceptable to the Coleoptera. The agar diet was eaten by the three Lepidoptera while pith and charred filter paper were acceptable to only two of them. It is concluded that vacuum infiltration of lettuce leaves is a useful method for the bioassay of host plant extracts to determine if they contain insect feeding token substances.

scholarly journals Ovicidal activity of four bioactive plant extracts against the cattle nematode, Cooperia spp. multi-resistant strain

2016 ◽  
Vol 3 (2) ◽  
Author(s):  
Elke von Son de Fernex ◽  
Miguel Ángel Alonso Díaz ◽  
Pedro Mendoza de Gives ◽  
Braulio Valles de la Mora ◽  
Alejandro Zamilpa ◽  
...  
Keyword(s):  
Plant Extracts ◽  
Resistant Strain ◽  
Ovicidal Activity

scholarly journals Oviposition deterrent and ovicidal activity of three edible oils (black seed, sesame and soybean oils) against puls beetle, Callosobruchus chinensis (Lin.) (Coleoptera: Bruchidae) on green gram, Vigna radiata

2019 ◽  
Vol 47 (1) ◽  
pp. 59-65
Author(s):  
Sharmin Akter ◽  
Shanjida Sultana ◽  
Tangin Akter ◽  
Shefali Begum
Keyword(s):  
Soybean Oil ◽  
Vigna Radiata ◽  
Seed Oil ◽  
Edible Oils ◽  
Nigella Sativa ◽  
Oviposition Deterrent ◽  
Callosobruchus Chinensis ◽  
Ovicidal Activity ◽  
Black Seed ◽  
Black Seed Oil

The effectiveness of three different edible oils - black seed (Nigella sativa), sesame (Sesamum indicum) and soybean (Glycene max) was evaluated for the control of pulse beetle, Callosobruchus chinensis on green mung pulse, Vigna radiata. The oviposition deterrent and ovicidal activity of these three oils were compared between fresh mung pulses and pulses treated at different doses (1, 3 and 6 μl). The results indicated that the rate of oviposition and the mean number of emerged adults of C. chinensis on mung pulses treated with black seed, sesame and soybean oil were lower than their respective control pulses. The lowest number of eggs were recorded in soybean oil treated seeds (13.8 ± 1.07, 12.6 ± 1.36, 10.0 ± 1.82) followed by sesame (51.8 ± 4.63, 25.8 ± 8.52, 14.2 ± 4.50) and black seed oil (67.2 ± 9.71, 27.4 ± 5.52, 21.0 ± 5.54) at dose 1 μl, 3 μl and 6 μl, respectively in order. Soybean oil at the rate of 6μl/50 seeds was significantly effective (10.0 ± 1.82) to inhibit egg deposition. In case of ovicidal activity, minimum number of adults were emerged from black seed oil treated pulses (25.2 ± 2.73, 24.2 ± 0.58, 22.4 ± 1.17 at dose 1, 3 and 6 μl, respectively). Black seed oil at the rate of 6μl/ 50 seeds was the most effective (22.4 ± 1.17) than other edible oils. Bangladesh J. Zool. 47(1): 59-65, 2019

scholarly journals Host Plant Determines the Population Size of an Obligate Symbiont (Buchnera aphidicola) in Aphids

2016 ◽  
Vol 82 (8) ◽  
pp. 2336-2346 ◽  
Author(s):  
Yuan-Chen Zhang ◽  
Wen-Jie Cao ◽  
Le-Rong Zhong ◽  
H. Charles J. Godfray ◽  
Xiang-Dong Liu
Keyword(s):  
Host Plant ◽  
Population Size ◽  
Plant Extracts ◽  
Host Plants ◽  
Aphis Gossypii ◽  
Buchnera Aphidicola ◽  
Content Type ◽  
Two Generations ◽  
Novel Host ◽  
In The Wild

ABSTRACTBuchnera aphidicolais an obligate endosymbiont that provides aphids with several essential nutrients. Though much is known about aphid-Buchnerainteractions, the effect of the host plant onBuchnerapopulation size remains unclear. Here we used quantitative PCR (qPCR) techniques to explore the effects of the host plant onBuchneradensities in the cotton-melon aphid,Aphis gossypii.Buchneratiters were significantly higher in populations that had been reared on cucumber for over 10 years than in populations maintained on cotton for a similar length of time. Aphids collected in the wild from hibiscus and zucchini harbored moreBuchnerasymbionts than those collected from cucumber and cotton. The effect of aphid genotype on the population size ofBuchneradepended on the host plant upon which they fed. When aphids from populations maintained on cucumber or cotton were transferred to novel host plants, host survival andBuchnerapopulation size fluctuated markedly for the first two generations before becoming relatively stable in the third and later generations. Host plant extracts from cucumber, pumpkin, zucchini, and cowpea added to artificial diets led to a significant increase inBuchneratiters in the aphids from the population reared on cotton, while plant extracts from cotton and zucchini led to a decrease inBuchneratiters in the aphids reared on cucumber. Gossypol, a secondary metabolite from cotton, suppressedBuchnerapopulations in populations from both cotton and cucumber, while cucurbitacin from cucurbit plants led to higher densities. Together, the results suggest that host plants influenceBuchnerapopulation processes and that this may provide phenotypic plasticity in host plant use for clonal aphids.

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