Life-history parameters of different biotypes ofBemisia tabaci(Hemiptera: Aleyrodidae) in relation to temperature and host plant: a selective review

1998 ◽  
Vol 88 (3) ◽  
pp. 219-230 ◽  
Author(s):  
Y.C. Drost ◽  
J.C. van Lenteren ◽  
H.J.W. van Roermund
Keyword(s):  
Life History ◽  
Trialeurodes Vaporariorum ◽  
Development Rate ◽  
Adult Longevity ◽  
Temperature Dependent ◽  
Greenhouse Whitefly ◽  
Life History Parameters ◽  
Different Populations ◽  
Biotype B ◽  
Rate Development

AbstractLife-history parameters of different biotypes of the whiteflyBemisia tabaci(Gennadius) species complex were reviewed. This included the B-biotype ofB. tabaci, identified asB. argentifolii(Bellows & Perring). Comparisons were made among different biotypes on cotton, among host plants for biotype B and among the whitefly speciesB. tabaciandTrialeurodes vaporariorum(Westwood), the greenhouse whitefly. The biotype identification of different populations ofB. tabaciwas summarized in a table. Biotypes discussed were A, B, Indian and biotypes of the Old World group. Temperature dependent relationships were estimated for egg development rate, development rate from egg to adult, immature mortality, adult longevity, sex-ratio, pre-oviposition period and fecundity. The fitted curves will be used as input for a simulation model of the population dynamics ofB. tabaciin a greenhouse when parasitoids are released. The model makes it possible to evaluate the integrated effect of different life-history parameters and behavioural parameters of parasitoids on whitefly population levels in a greenhouse.

LIFE HISTORY PARAMETERS IN MELANOPLUS SANGUINIPES (F.) IN TWO CRESTED WHEATGRASS PASTURES

1988 ◽  
Vol 120 (1) ◽  
pp. 39-44 ◽  
Author(s):  
Norma E. Sanchez ◽  
Jerome A. Onsager
Keyword(s):  
Life History ◽  
Survival Rates ◽  
Adult Longevity ◽  
Melanoplus Sanguinipes ◽  
Crested Wheatgrass ◽  
Life History Parameters ◽  
Preoviposition Period ◽  
Point Estimates ◽  
Two Populations ◽  
Net Replacement

AbstractA combination of published techniques provided point estimates of life history parameters for two natural field populations of Melanoplus sanguinipes (F.) in crested wheatgrass pastures. Stage-specific survival rates averaged 0.4798, 0.2261, 0.7628, and 0.6903 for egg, instars I–III combined, instar IV, and instar V, respectively. Daily survival rates of adults averaged 0.9702, but were slightly lower for females than for males. Estimated duration of nymphal instars averaged 8.4 days, the adult preoviposition period averaged 13.3 days, and adult longevity averaged 26.7 and 36.3 days in the two populations. Oviposition rates were estimated for up to four successive ovipositions, and net replacement rates of populations also were estimated. Neither population replaced itself, indicating that potential capacities for increase were not approached under conditions of these studies.

scholarly journals A temperature-dependent phenology model for the greenhouse whitefly Trialeurodes vaporariorum (Hemiptera: Aleyrodidae)

2020 ◽  
Vol 289 ◽  
pp. 198107
Author(s):  
Heidy Gamarra ◽  
Marc Sporleder ◽  
Pablo Carhuapoma ◽  
Jürgen Kroschel ◽  
Jan Kreuze
Keyword(s):  
Trialeurodes Vaporariorum ◽  
Temperature Dependent ◽  
Greenhouse Whitefly ◽  
Phenology Model

Life history of Lygus keltoni (Hemiptera: Miridae) in the laboratory

2006 ◽  
Vol 138 (6) ◽  
pp. 871-874 ◽  
Author(s):  
H.A. Cárcamo ◽  
T.R. Larson ◽  
C.E. Herle ◽  
J.K. Otani
Keyword(s):  
Life History ◽  
Management Strategies ◽  
Reproductive Potential ◽  
Adult Longevity ◽  
Western Canada ◽  
Life History Parameters ◽  
Egg Incubation ◽  
Preoviposition Period ◽  
Reproductive Life ◽  
History Of

AbstractLygus keltoni Schwartz and Foottit is a species of plant bugs recently recognized as distinct from L. shulli Knight and an important component of the pest complex that attacks a number of field crops such as canola (Brassica napus) and alfalfa (Medicago sativa) in western Canada. The current laboratory study was undertaken to determine basic life-history parameters, such as instar duration, adult longevity, and reproductive potential, required to develop biologically based pest management strategies. At 25–27 °C, males lived around 34 days and females lived around 48 days. Females produced an average of 133 nymphs but up to 306 nymphs during their reproductive life, which averaged around 4 weeks (7-day preoviposition period). Egg incubation lasted around 10 days, instars 1–4 lasted 2–3 days each, and the 5th instar lasted 4 days. The reproductive potential of L. keltoni seems to be lower than that of L. hesperus Knight and L. lineolaris (Palisot de Beauvois), but other life-history parameters of the adults and development times of the nymphs are comparable.

scholarly journals Larger is Better in the Parasitoid Eretmocerus warrae (Hymenoptera: Aphelinidae)

Insects ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 39
Author(s):  
Tao Wang ◽  
Michael A. Keller
Keyword(s):  
Body Size ◽  
Developmental Stages ◽  
Adult Stage ◽  
Life Time ◽  
Trialeurodes Vaporariorum ◽  
The Body ◽  
Adult Longevity ◽  
Body Volume ◽  
Greenhouse Whitefly ◽  
Body Sizes

Eretmocerus warrae (Hymenoptera: Aphelinidae) is a specialist parasitoid that is used for the control of the greenhouse whitefly, Trialeurodes vaporariorum (Hemiptera: Aleyrodidae). We investigated how temperature affects the body-size, life-time oviposition, and longevity of E. warrae at different stages of life. The body-sizes of both this parasitoid and its host are influenced by temperature. Body-volume indices that reflect body-sizes fell by 47.7 % in T. vaporariorum compared with 57.6% in E. warrae when temperature increased from 20 to 32 °C. The life-time oviposition of female adults of E. warrae that grew at the immature developmental temperature of 20 °C was 86 ± 22 eggs, more than 66 ± 11 eggs at 26 °C, and 65 ± 23 eggs at 32 °C. Besides the influence on fecundity, temperature also influences the oviposition behaviour at the adult stage. More eggs were oviposited at 20 and 26 °C than at 32 °C. Higher temperatures reduced survival in the immature developmental stages and longevity in adults. Adult females lived for a maximum of 8.9 ± 1.8 days at 20 °C and laid a maximum of 97.4 ± 23.2 eggs when reared at 20 °C and maintained at 26 °C as adults. Adult body-size is positively correlated with life-time oviposition but not adult longevity. The results imply that temperature influences the nature of interactions between a parasitoid and its host. Larger wasps can live longer and parasitise more hosts, which should improve their performance as biological control agents.

scholarly journals Insect Trap Catch Improvement with Light-Emitting Diode Modification

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 871D-872
Author(s):  
Chang-chi Chu* ◽  
Kai Umeda ◽  
Tian-Ye Chen ◽  
Alvin M. Simmons ◽  
Thomas H. Henneberry
Keyword(s):  
Insect Pests ◽  
Light Emitting Diode ◽  
Western Flower Thrips ◽  
Trialeurodes Vaporariorum ◽  
Greenhouse Whitefly ◽  
Light Emitting ◽  
Control Programs ◽  
Fungus Gnats ◽  
Green Led ◽  
Biotype B

Insect traps are vital component of many entomological programs for detection and monitoring of insect populations. We equipped yellow (YC), blue (BC) sticky card (BC) with 530 nm lime green (LED-YC) and 470 nm blue (LED-BC) light-emitting diodes, respectively that increased trap catches of several insect pests. The LED-YC traps caught 1.3, 1.4, 1.8, and 4.8 times more adult greenhouse whitefly Trialeurodes vaporariorum (Westwood), sweetpotato whitefly Bemisia tabaci (Gennadius) biotype B, cotton aphids Gossypium hirsutum (L.), and fungus gnats Bradysia coprophila (Lintner), respectively, compared with standard YC traps. The LED-YC traps did not catch more Eretmocerus spp. than the standard YC traps. Eretmocerus spp. are important B. tabaci parasitoids used in greenhouse biological control programs. For whitefly control in greenhouse the 530 nm lime green LED equipped plastic cup trap designed by Chu et al. (2003) is the better choice than LED-YC trap because it catches few Eretmocerus spp. and Encarsia spp. whitefly parasitoids released for B. tabaci nymph control. The LED-BC traps caught 2.0-2.5 times more adult western flower thrips Franklinella occidentalis (Pergande) compared with the standard BC traps.

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