Design and analysis of multiple-choice feeding-preference experiments

Oecologia ◽  
1992 ◽  
Vol 89 (4) ◽  
pp. 509-515 ◽  
Author(s):  
Rubén Roa
Keyword(s):  
Multiple Choice ◽  
Feeding Preference ◽  
Choice Feeding

scholarly journals Repellent, antifeedant and insecticidal effects of neem oil on Microtheca punctigera

2008 ◽  
Vol 51 (6) ◽  
pp. 1121-1126 ◽  
Author(s):  
Adriana Yatie Mikami ◽  
Maurício Ursi Ventura
Keyword(s):  
Multiple Choice ◽  
Feeding Preference ◽  
Biological Parameters ◽  
Wild Radish ◽  
Neem Oil ◽  
Raphanus Raphanistrum ◽  
Neem Tree ◽  
Oil Emulsion ◽  
Choice Assay ◽  
Choice Feeding

The effects of concentrations (0.00, 0.25, 0.50 and 1.00%) of the neem tree (Azadirachta indica - Meliaceae) oil emulsion on the behavioral and biological parameters of M. punctigera were investigated in the laboratory. Wild radish (Raphanus raphanistrum L.) host plant was used. Multiple and no-choice feeding preference assays were conducted which shown multiple effects. The males were repelled by the neem oil in multiple-choice assay. The adult (multiple-choice) and larvae (multiple and no-choice) feeding were deterred. The larvae mortality was higher in the neem oil treated than the control leaves. Further investigations are suggested to test neem oil in the management of the pest in the field.

Design and analysis of multiple choice feeding preference data

Oecologia ◽  
2004 ◽  
Vol 138 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Jeffrey S. Prince ◽  
W. G. LeBlanc ◽  
S. Maci�
Keyword(s):  
Multiple Choice ◽  
Feeding Preference ◽  
Preference Data ◽  
Choice Feeding

scholarly journals Preference for and Suitability of Selected Elms, Ulmus spp. and Their Hybrids for the Elm Leaf Beetle, (Pyrrhalta luteola Coleoptera: Chrysomelidae)

1994 ◽  
Vol 12 (4) ◽  
pp. 231-235
Author(s):  
Fredric Miller ◽  
George Ware
Keyword(s):  
Multiple Choice ◽  
Leaf Beetle ◽  
Feeding Preference ◽  
Dutch Elm Disease ◽  
Adult Longevity ◽  
Shade Trees ◽  
Breeding Programs ◽  
Elm Leaf Beetle ◽  
Choice Feeding ◽  
Species Hybrids

Abstract Selected elms Ulmus spp. and their hybrids growing at the Morton Arboretum, Lisle, IL were evaluated in the laboratory for feeding preference by the elm leaf beetle, Pyrrhalta luteola (Muller). Results from the single-choice and multiple-choice feeding studies showed that U. szechuanica was the least suitable for feeding and reproduction by the adult elm leaf beetle. The hybrids U. pumila x U. parvifolia and U. pumila x U. americana, and U. pumila (control) appeared to be highly suitable for feeding and reproduction by the adult elm leaf beetle. Adult longevity and the pre-ovipositional period appeared to be a function of suitability as adults feeding on U. szechuanica had the shortest longevity and the longest pre-ovipositional period. The converse was also true. Results from multiple-choice studies were consistent with the single-choice studies. The intermediately suitable species/hybrids of U. japonicawilsoniana x U. pumila, U. Japonica, U. macrocarpa, and U. wilsoniana show promise for further elm breeding programs. Further studies are needed to evaluate hybrid crosses of the intermediately and least preferred elms as potential sources of shade trees resistant to Dutch elm disease and not preferred by the elm leaf beetle.

scholarly journals The Effects of Stomatal Size on Feeding Preference of Azalea Lace Bug, Stephanitis pyrioides (Hemiptera: Tingidae), on Selected Cultivars of Evergreen Azalea

HortScience ◽  
2008 ◽  
Vol 43 (7) ◽  
pp. 2098-2103 ◽  
Author(s):  
Grant T. Kirker ◽  
Blair J. Sampson ◽  
Cecil T. Pounders ◽  
James M. Spiers ◽  
David W. Boyd
Keyword(s):  
Feeding Preference ◽  
Delaware Valley ◽  
Stomatal Size ◽  
Lace Bug ◽  
Choice Tests ◽  
Length And Area ◽  
Stomatal Length ◽  
Choice Feeding ◽  
Economic Pest ◽  
Evergreen Azalea

Azalea lace bug (ALB), Stephanitis pyrioides (Scott), is an important economic pest of azaleas in the southeastern United States. In this study, 33 commercially available cultivars of evergreen azalea, Rhododendron spp., were evaluated for S. pyrioides feeding preference in both choice and no-choice feeding bioassays. Mean stomatal length and area, which were hypothesized to affect ALB feeding preference, were also measured for each of 33 cultivars and results were correlated with indices of ALB feeding (mean feces) and fecundity (mean eggs). An azalea cultivar, Fourth of July, was least preferred by ALB in both no-choice and choice tests, whereas ‘Watchet’ was most preferred. Cultivars Fourth of July and Delaware Valley White had the smallest mean stomatal areas despite their disparate susceptibilities to ALB feeding. Although stomates through which ALB insert their proboscides vary in size among azalea cultivars, they confer no obvious resistance to ALB feeding preference. Therefore, the mechanism for lace bug resistance in azalea remains elusive.

scholarly journals (117) Grape Cultivar Preference and Organic Control of Japanese Beetles (Popillia japonica)

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1067E-1068
Author(s):  
Sanjun Gu ◽  
Kirk Pomper
Keyword(s):  
Leaf Area ◽  
Feeding Preference ◽  
Feeding Deterrents ◽  
Popillia Japonica ◽  
Water Control ◽  
Grape Cultivar ◽  
Feeding Study ◽  
Leaf Area Loss ◽  
Choice Feeding ◽  
High Label

Feeding by Japanese beetles (JB) can damage grape leaves and result in a loss of vine leaf area, thus reducing both yield and fruit quality. The objectives of this study were to determine if there was a grape cultivar feeding preference by JBs and whether application of organic feeding deterrents to leaves would reduce damage by JBs. Eleven American and hybrid grape cultivars were evaluated in a choice feeding study in cages, where 15 JBs per vine were introduced for 48 hours. The number of leaves damaged by JBs varied by cultivar. `Chardonel' (43%) had fewer damaged leaves than `Seyval' (78%), `Edelweiss' (74%), `Norton' (63%), and `Vignoles' (63%). The leaf area lost by feeding varied by cultivar, with `Lacrosse' (15%) showing the least damage and `Seyval' the most (40%). In another JB choice feeding study with organic feeding deterrents, Surround (at label rate) and Neemix 4.5 [at high label rate (A) or doubled high label rate (B)] were compared to a water control with `Chardonel', `Traminette', and `Vignoles' grapes. Surround and Neemix 4.5 applied at level A reduced the number of damaged leaves compared to the control; however, Neemix 4.5 at level B showed similar damage to the control. Loss of leaf area due to feeding of JBs was greatest on vines treated with Neemix 4.5 at level B and least on those treated with Surround, although this loss of leaf area was not significantly different between the two Neemix 4.5 treatments. Vines treated with Surround had the least leaf area loss, followed by the control, Neemix 4.5 at level A, and Neemix 4.5 at level B.

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