scholarly journals Adult attractiveness and oviposition preference of Bemisia tabaci (Genn.) (Homoptera: Aleyrodidae) B-biotype in cotton genotypes

2007 ◽  
Vol 64 (2) ◽  
pp. 147-151 ◽  
Author(s):  
Arlindo Leal Boiça Júnior ◽  
Zeneide Ribeiro Campos ◽  
André Luiz Lourenção ◽  
Alcebíades Ribeiro Campos
Keyword(s):  
Bemisia Tabaci ◽  
Room Temperature ◽  
Free Choice ◽  
Oviposition Preference ◽  
Plant Vigour ◽  
Choice Tests ◽  
Important Pest ◽  
Cotton Genotypes ◽  
Bemisia Tabaci B Biotype ◽  
B Biotype

The silverleaf whitefly Bemisia tabaci B-biotype is an important pest of cotton; it affects plant vigour, transmits geminivirus and reduces lint quality. In order to evaluate the resistance of cotton genotypes, Gossypium hirsutum (L.), to the whitefly Bemisia tabaci B-biotype, both free-choice and no-choice attractiveness and non-preference for oviposition tests were carried out in a shade house, at room temperature. Low attractiveness to adults of this whitefly was observed for plants of genotypes Fabrika, CNPA Ita 90, Makina, Coodetec 407, and IAC 01-639 CPA 02-24, which may represent a resistance component of these genetic materials to the insect. Genotypes BRS Aroeira, Coodetec 406, Fabrika, and Coodetec 401 presented the non-preference-for-oviposition type of resistance in the free-choice and no-choice tests. The numbers of trichomes and gossypol glands per cm² were not suitable to evaluate non-preference for oviposition of whitefly adults on cotton genotypes.

scholarly journals Antibiosis and antixenosis resistance to oviposition by Bemisia tabaci (Gennadius) B biotype (Hemiptera: Aleyrodidae) in soybean genotypes

2018 ◽  
Vol 85 (0) ◽  
Author(s):  
Vanusa Rodrigues Horas ◽  
Paulo Eduardo Degrande ◽  
Carlos Eduardo Carducci ◽  
Marcos Gino Fernandes
Keyword(s):  
Bemisia Tabaci ◽  
Survival Rates ◽  
Adult Survival ◽  
Silverleaf Whitefly ◽  
Egg Incubation ◽  
Choice Tests ◽  
Soybean Genotypes ◽  
Antibiosis Resistance ◽  
Bemisia Tabaci B Biotype ◽  
B Biotype

ABSTRACT: This study was aimed at assessing some biological parameters of Bemisia tabaci B biotype at immature stages to examine antibiosis in six soybean genotypes, besides antixenosis resistance to oviposition in choice and non-choice tests, under greenhouse and laboratory conditions. Between April 2016 and August 2016, bioassays were carried out at the Laboratory of Applied Entomology at College of Agricultural Sciences at Federal University of Grande Dourados (UFGD) Dourados (MS), Brazil. The following variables were evaluated: egg incubation period, nymphal and egg-to-adult duration, egg and nymph viability, and egg-to-adult survival on the soybean genotypes 68i70 RSF IPRO, M6210 IPRO, MS 947 IPRO, BMX Potência RR, M6410 IPRO, and ANTA 82 RR. Antixenosis resistance to oviposition by the silverleaf whitefly was found for MS 947 IPRO, while oviposition was highest for ANTA 82 RR, M6210 IPRO, and M6410 IPRO. The genotype MS 947 IPRO adversely affected egg and nymph viability, and egg-to-adult survival rates was the lowest among genotypes (59.75%), suggesting antibiosis resistance to this pest.

scholarly journals Oviposition preference and larval performance of sugarcane borer in eight sugarcane genotypes

2017 ◽  
Vol 41 (4) ◽  
pp. 439-446 ◽  
Author(s):  
Guilherme Vieira Pimentel ◽  
Adriano Cirino Tomaz ◽  
Bruno Portela Brasileiro ◽  
Luiz Alexandre Peternelli ◽  
Márcio Henrique Pereira Barbosa
Keyword(s):  
Free Choice ◽  
Early Stage ◽  
Oviposition Preference ◽  
Choice Test ◽  
Larval Performance ◽  
Foliar Injury ◽  
Breeding Programs ◽  
Sugarcane Borer ◽  
Choice Tests ◽  
Late Stages

ABSTRACT The sugarcane borer Diatraea saccharalis Fabr. (Lepidoptera: Crambidae) is one of the most important pests of sugarcane in the Americas. The purpose of this study was to assess multiple resistance traits in eight sugarcane genotypes against D. saccharalis, including five commercial cultivars and three exotic germplasm with potential to serve as resistance sources against this pest. The oviposition preference was assessed by using both free-choice and non-choice tests. The performance of both early stage larvae feeding on the leaves and late stages larvae feeding within the stalks were also assessed. There were differences among genotypes for number of both eggs and egg cluster in the free-choice test while no differences in non-choice test were observed. There were also differences in survival of early stage larvae feeding on the leaves, foliar injury rating and stalk damage. The genotype IM76-228 was the least preferred for oviposition and it seems that leaf width had some influence on adults’ preference rather than greening of the leaves. IM76-228 and RB867515 causes higher mortality of early stage larvae feeding in the stalks while IM76-228 and RB985523 had lower damage in both leaves and stalks. The genotype IM76-228 was the most resistant to D. saccharalis and could serve as genes sources for resistance in sugarcane breeding programs.

scholarly journals Oviposition preference of Bemisia tabaci (Genn.) biotype B (Homoptera: Aleyrodidae) for bean genotypes containing arcelin in the seeds

2000 ◽  
Vol 29 (3) ◽  
pp. 565-572 ◽  
Author(s):  
Maria A. de G. Oriani ◽  
Fernando M. Lara
Keyword(s):  
Phaseolus Vulgaris ◽  
Bemisia Tabaci ◽  
Free Choice ◽  
Oviposition Preference ◽  
Near Isogenic Lines ◽  
Phaseolus Vulgaris L ◽  
Isogenic Lines ◽  
Biotype B ◽  
Bemisia Tabaci Biotype B

The oviposition preference of Bemisia tabaci biotype B (Homoptera: Aleyrodidae) for bean (Phaseolus vulgaris L.) genotypes containing arcelin in the seeds was evaluated. The tests were carried out under greenhouse conditions, in the dry and wet seasons, with the following genotypes: ARC 3s, ARC 5s (wild genotypes containing arcelin in the seeds); ARC 1, ARC 2, ARC 3, ARC 4 (near isogenic lines containing arcelin in the seeds - EMBRAPA) and Porrillo 70, Bolinha, IAPAR MD 808 (commercial genotypes without arcelin). In the free choice and no-choice oviposition tests, Bolinha and Porrillo 70 genotypes were preferred for oviposition by that insect. The Bolinha susceptibility could be related to the great number of acicular trichomes presents on its leaves surface. The wild genotypes, ARC 5s and ARC 3s, showed oviposition nonpreference resistance type. This resistance is not related to the arcelin variants, since the bred genotypes also contain arcelin in its seeds and did not show resistance to B. tabaci, biotype B.

Baseline Susceptibility of Bemisia tabaci B Biotype (Hemiptera: Aleyrodidae) Populations from California and Arizona to Spiromesifen

2008 ◽  
Vol 101 (1) ◽  
pp. 174-181 ◽  
Author(s):  
Nilima Prabhaker ◽  
S. J. Castle ◽  
L. Buckelew ◽  
Nick C. Toscano
Keyword(s):  
Bemisia Tabaci ◽  
Bemisia Tabaci B Biotype ◽  
B Biotype

scholarly journals Comparative Demographic Traits of the Whitefly (Bemisia tabaci) B Biotype against different Host Plants

2021 ◽  
Vol 25 (02) ◽  
pp. 460-468
Author(s):  
Muhammad Farooq
Keyword(s):  
Bemisia Tabaci ◽  
Intrinsic Rate ◽  
Reproductive Rate ◽  
Intrinsic Rate Of Increase ◽  
Developmental Duration ◽  
Net Reproductive Rate ◽  
Demographic Traits ◽  
Rate Of Increase ◽  
Bemisia Tabaci B Biotype ◽  
B Biotype

The sucking pests, especially whitefly, have damaged various fields and fruit crops across the globe. The study of life-history is of prime importance to monitor the dynamics for preference of a species to its host. This study tested the prevalence and preference of a whitefly species, Bemisia tabaci (Gennadius) B biotype (Hemiptera: Aleyrodidae) on tomato, cotton, pepper, and okra as hosts using age-stage two-sex life table. Results revealed the highest pre-adult developmental duration, survival rate, and fecundity on tomato while the lowest values on okra. Population parameters such as the net reproductive rate (R0), intrinsic rate of increase (r), and finite rate of increase (λ) were demonstrated longer on cotton and tomato compared to much lower R0, r, and λ on pepper and okra. Okra responded significantly differently in the case of the mean generation time, T among all tested genotypes. These findings suggest the possibility of summer vegetables as more favorable hosts for B. tabaci. © 2021 Friends Science Publishers

scholarly journals Antixenosis of bean genotypes to Chrysodeixis includens (Lepidoptera: Noctuidae)

2015 ◽  
Vol 50 (6) ◽  
pp. 450-458 ◽  
Author(s):  
Rafaela Morando ◽  
Edson Luiz Lopes Baldin ◽  
Patrícia Leite Cruz ◽  
André Luiz Lourenção ◽  
Alisson Fernando Chiorato
Keyword(s):  
Free Choice ◽  
Oviposition Preference ◽  
Green Light ◽  
Choice Test ◽  
Choice Tests ◽  
Dark Green ◽  
Soybean Looper ◽  
Lepidoptera Noctuidae ◽  
Light Green ◽  
Chrysodeixis Includens

The objective of this work was to evaluate bean genotypes for resistance to soybean looper (Chrysodeixis includens). Initially, free-choice tests were carried out with 59 genotypes, divided into three groups according to leaf color intensity (dark green, light green, and medium green), in order to evaluate oviposition preference. Subsequently, 12 genotypes with high potential for resistance were selected, as well as two susceptible commercial standards. With these genotypes, new tests were performed for oviposition in a greenhouse, besides tests for attractiveness and consumption under laboratory conditions (26±2ºC, 65±10% RH, and 14 h light: 10 h dark photophase). In the no-choice test with adults, in the greenhouse, the 'IAC Jabola', Arcelina 1, 'IAC Boreal', 'Flor de Mayo', and 'IAC Formoso' genotypes were the least oviposited, showing antixenosis-type resistance for oviposition. In the free-choice test with larvae, Arcelina 4, 'BRS Horizonte', 'Pérola', H96A102-1-1-1-52, 'IAC Boreal', 'IAC Harmonia', and 'IAC Formoso' were the less consumed genotypes, which indicates antixenosis to feeding. In the no-choice test, all genotypes (except for 'IAPAR 57') expressed moderate levels of antixenosis to feeding against C. includens larvae.

scholarly journals Oviposition Preference of Callosobruchus maculatus (F.) to Common Pulses and Potentiality of Triflumuron as their Protectant

1970 ◽  
Vol 15 ◽  
pp. 83-88 ◽  
Author(s):  
M Saiful Islam ◽  
Fauzia Akhter ◽  
Rezina Laz ◽  
Selina Parween
Keyword(s):  
Free Choice ◽  
Callosobruchus Maculatus ◽  
Oviposition Preference ◽  
Adult Emergence ◽  
Developmental Time ◽  
Egg Laying ◽  
Choice Test ◽  
Egg Hatching ◽  
Choice Tests ◽  
Green Peas

Seeds of black grams, lentils, Bengal grams and green peas were soaked separately in aqueous solutions of Triflumuron at doses of 0.0 (control), 0.5, 1.0, 1.5 and 2.0 ppm. Three day -old adults of Callosobruchus maculatus (F.) (Coleoptera: Bruchidae) were allowed to oviposit on air-dried, treated or untreated pulses of each type and dose in ‘no-choice' and ‘free-choice' tests. Maximum oviposition occurred in Bengal grams (61.00? 0.25) and green peas (33.67? 0.54) in ‘no-choice' and ‘free-choice' tests, respectively. The beetles avoided egg laying on lentils. Maximum egg-hatching occurred on black grams (>90%) in both tests. Minimum developmental time was required in the Bengal grams (30? 0.5 days in ‘no-choice' test and 31.33? 1.23 days in ‘free-choice' test). No adults emerged from green peas, while 54.79% and 86.15% emergence were recorded from untreated black grams in ‘no-choice' and ‘free-choice' tests, respectively. Triflumuron reduced egg-laying significantly in green peas, where hatchability also reduced significantly to 35.99% at 2 ppm in ‘no-choice' test. Percentage of hatching decreased in all pulses with the increasing doses of triflumuron. No adults emerged from the treated green peas in any test, and at 2 ppm the adult emergence declined to < 50% in all pulses. Implications of these results are further discussed.  Key words: Callosobruchus maculatus, Triflumuron, seed protectant, fecundity, hatchability, developmental period, adult emergence   doi: 10.3329/jbs.v15i0.2207 J. bio-sci. 15: 83-88, 2007

Oviposition preference by the black cowpea moth, Cydia ptychora (Meyrick) (Lepidoptera: Tortricidae), for different varieties of cowpea

1980 ◽  
Vol 70 (3) ◽  
pp. 439-443 ◽  
Author(s):  
A. E. Akingbohungbe ◽  
T. Agbede ◽  
J. I. Olaifa
Keyword(s):  
Host Plant ◽  
Laboratory Tests ◽  
Free Choice ◽  
Oviposition Preference ◽  
Oviposition Preferences ◽  
Cydia Ptychora ◽  
Choice Tests

AbstractIn tests in Nigeria with its principal host-plant, cowpea, Cydia ptychora (Meyr.) showed distinct oviposition preferences. Most of the eggs were laid on the sepals (including their remains on pods) in screenhouse tests involving four varieties. There were distinct differences in the number of eggs laid on different varieties in both no-choice tests with four or five varieties and free-choice tests with 17 varieties in the field. Vita-3 was the preferred variety in the laboratory tests and H 13–1 in the larger comparisons in the field. Fewest eggs were deposited on Tvu 2994 in all tests.

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