Effects of Host Plant and Temperature on the Biology of<i>Toxoptera citricida</i>(Homoptera: Aphididae)

Tang, Y. Q.; Lapointe, Stephen L.; Brown, Lawrence G.; Hunter, Wayne B.

doi:10.1093/ee/28.5.895

Cited by 38 publications

(26 citation statements)

References 10 publications

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“…However, the degree-day requirement for total immature development (119.05 DD) estimated by our study was higher than the 99.1 DD estimated by Elliott et al (1988). Overall, developmental variations for geographically separated populations of corn leaf aphids indicate a possibility of different adaptations of the aphids to different local climates (Lamb, 1992;Tang et al, 1999) or a combination effect of temperature, especially low temperatures, and host plants on the aphids (Nava-Camberos et al, 2001).…”

Section: Discussioncontrasting

confidence: 56%

“…Related studies have never been reported in Asia. Furthermore, variations in life history traits reflecting adaptations to local climatic conditions or different host plants may occur among different insect populations (Lamb, 1992;Tang et al, 1999;Weber et al, 1999). Therefore, we studied the effects of seven constant temperatures (6, 10, 15, 20, 25, 30, and 35°C) on the life history traits, including developmental, longevity, fecundity and population growth statistics of corn leaf aphids reared on corn leaves in subtropical Taiwan, northeastern Asia, to better understand the variations in life history traits among different geographically separated populations.…”

Section: Introductionmentioning

confidence: 99%

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Temperature effects on life history traits of the corn leaf aphid, Rhopalosiphum maidis (Homoptera: Aphididae) on corn in Taiwan

Kuo

Chiu

Perng

2006

Appl. Entomol. Zool.

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The effects of temperature on the life history traits of Rhopalosiphum maidis (Fitch) were determined at 6, 10, 15, 20, 25, 30, and 35Ϯ1°C on corn leaves, Zea mays (L.). At 35°C, only a few nymphs survived and completed development, but all failed to reproduce. Total immature stages from birth to adult decreased as temperature increased from 51.7 d at 6°C to 5.2 d at 30°C, but became 8.0 d at 35°C. Overall immature development required 119.05 degree-days above 4.44°C. Adult longevity was as high as 26.7 d at 15°C, but significantly declined at 30 and 35°C. The average adult fecundity was as high as 45 offspring at 15 and 20°C, but dropped to 1.8 at 6°C and 8.6 at 30°C. In general, as temperatures increased, age-specific survivorship (l x ) declined more quickly, but age-specific fecundity (m x ) peaked earlier. At 25°C, the age-specific net maternity (v x ϭl x m x ) was the highest in the early reproductive period, resulting in the highest intrinsic rates of increase (r m ϭ0.329). At 20-30°C, the values of r m were significantly higher than those at lower temperatures. The results indicate that corn leaf aphids probably are better adapted in population growth to a wider range of high temperatures in warm regions.

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Section: Discussioncontrasting

confidence: 56%

Section: Introductionmentioning

confidence: 99%

Temperature effects on life history traits of the corn leaf aphid, Rhopalosiphum maidis (Homoptera: Aphididae) on corn in Taiwan

Kuo

Chiu

Perng

2006

Appl. Entomol. Zool.

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“…De modo geral, os valores encontrados para R o , neste trabalho, diferiram dos obtidos por Root & Olson (1969), que estudaram B. brassicae em condições de campo usando brócolos como planta hospedeira, e Vasicek et al (1998), que desenvolveram seus estudos em repolho e temperaturas constantes de 5 o C e 20 o C. Provavelmente, esses resultados distintos devem estar relacionados com as diferenças existentes nas condições de temperatura e plantas hospedeiras utilizadas, que podem alterar tanto a taxa de sobrevivência quanto a fecundidade dos pulgões (Hughes 1963, Siddiqui et al 1973, Amjad & Peters 1992, Tang et al 1999, os quais são utilizados para estimar R o .…”

Section: Resultsunclassified

“…Entre os fatores que causam alterações na densidade populacional de pulgões, o polimorfismo, induzido quando indivíduos estão aglomerados em alta densidade, parece ser o mais provável fator regulador das suas populações (Dixon 1977). A ação de inimigos naturais reduz a densidade de pulgões (Raworth et al 1984, Chen & Hopper 1997, enquanto as condições meteorológicas têm sido consideradas por vários autores (Dixon 1987, Risch 1987, Pons et al 1993, Debaraj & Singh 1996 como as mais importantes variáveis atuando direta ou indiretamente sobre suas populações, com destaque para a temperatura que influi na longevidade e nas taxas de desenvolvimento e de reprodução dos pulgões (Dixon 1998, Tang et al 1999.…”

Section: Palavras-chave: Pulgão Graus-dia Dinâmica Populacional Brunclassified

Tabelas de Vida de Fertilidade de Brevicoryne brassicae (L.) (Hemiptera: Aphididae) em Condições de Campo

Cividanes¹

2002

Neotrop. Entomol.

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-Studies related with life tables are fundamental for the understanding of the population dynamics of insects. In this work, Brevicoryne brassicae (L.) was studied during spring, summer, fall and winter through age-specific life tables aiming to evaluate the influence of temperature on its population dynamic. The experiments were carried out observing B. brassicae enclosed in leaf cages fixed in kale, Brassica oleracea L. var. acephala DC. The age-specific life table parameters, computed on a degree-day time scale, indicated that B. brassicae showed the longest survival during the thermal conditions of fall and winter, while its highest fecundity was observed when the aphids experienced spring temperatures. High summer temperatures adversely affected the population dynamic of B. brassicae through its negative influence on immature development, survival, longevity and reproduction.KEY WORDS: Aphid, degree-day, population dynamics, Brassica oleracea.RESUMO -Estudos relacionados com tabelas de vida são fundamentais para o entendimento da dinâmica populacional de insetos. Neste trabalho, a espécie Brevicoryne brassicae (L.) foi estudada durante a primavera, verão, outono e inverno por meio de tabelas de vida de fertilidade, visando-se avaliar a influência da temperatura sobre sua dinâmica populacional. Para a condução dos experimentos, os pulgões foram mantidos em pequenas gaiolas fixadas em folhas de couve, Brassica oleracea L. var. acephala DC. Os parâmetros das tabelas de vida, estimados na escala de tempo em graus-dia, evidenciaram que B. brassicae apresentou maior sobrevivência nas condições térmicas de outono e inverno, o mesmo ocorrendo com sua fecundidade quando as fêmeas foram submetidas às temperaturas da primavera. As elevadas temperaturas registradas no verão influenciaram adversamente a dinâmica populacional de B. brassicae, pois afetaram negativamente seu desenvolvimento, sobrevivência, longevidade e reprodução. PALAVRAS-CHAVE: Pulgão, graus-dia, dinâmica populacional, Brassica oleracea.O pulgão-da-couve, Brevicoryne brassicae (L.), encontra-se amplamente distribuído nas regiões temperadas e sub-tropicais do mundo, sendo que a quase totalidade de suas plantas hospedeiras pertence à família Brassicaceae (Ellis & Singh 1993). No Brasil é considerado praga-chave da cultura da couve (Salgado 1983).A flutuação populacional dos pulgões pode variar consideravelmente de um ano para outro, com os padrões de abundância de uma determinada espécie geralmente mostrando-se diferente entre regiões geográficas distintas, o mesmo podendo ocorrer entre populações vizinhas desenvolvendo-se na mesma época (Wellings et al. 1985). Entre os fatores que causam alterações na densidade populacional de pulgões, o polimorfismo, induzido quando indivíduos estão aglomerados em alta densidade, parece ser o mais provável fator regulador das suas populações (Dixon

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“…In contrast, the required thermal units reported by Hasson (1988) differ. However, geographically separated populations of the same species may differ genetically and biologically (Hon k, 1996;Tang et al, 1999). In addition, if the parents of the eggs used in different studies are reared at different temperatures then that could also affect the results.…”

Section: Discussionmentioning

confidence: 99%

Temperature-dependent development of dubas bug, Ommatissus lybicus (Hemiptera: Tropiduchidae), an endemic pest of date palm, Phoenix dactylifera

Mokhtar¹,

Nabhani²

2010

Eur. J. Entomol.

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Abstract. Dubas bug, Ommatissus lybicus Bergevin, is an important pest of date palm on the Arab peninsula. This sucking insect causes great damage to the trees and reduces the quantity and quality of the dates. Effect of temperature on the development of the immature stages of O. lybicus was studied in the laboratory by rearing them at nine constant temperatures, ranging from 15 to 35°C. Development was successfully completed at temperatures ranging from 20 to 35°C for eggs and from 20 to 32.5°C for nymphs. The lower thermal thresholds for development of eggs, nymphs and egg-adult were estimated by means of linear regression as 12.9, 12.9 and 13.2°C, respectively. Thermal units required for the development of the same stages were 572.5, 648.2 and 1184.4 degree-days, respectively. The lethal high temperatures were also estimated using a nonlinear model as 34.5, 43.4 and 34.6°C for eggs, nymphs and total immature stages, respectively. The development rate and survival data indicate that the optimum temperature range for O. lybicus is 25-27.5°C.

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Effects of Host Plant and Temperature on the Biology ofToxoptera citricida(Homoptera: Aphididae)

Cited by 38 publications

References 10 publications

Temperature effects on life history traits of the corn leaf aphid, Rhopalosiphum maidis (Homoptera: Aphididae) on corn in Taiwan

Temperature effects on life history traits of the corn leaf aphid, Rhopalosiphum maidis (Homoptera: Aphididae) on corn in Taiwan

Tabelas de Vida de Fertilidade de Brevicoryne brassicae (L.) (Hemiptera: Aphididae) em Condições de Campo

Temperature-dependent development of dubas bug, Ommatissus lybicus (Hemiptera: Tropiduchidae), an endemic pest of date palm, Phoenix dactylifera

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