Regional distribution, insecticide resistance, and reciprocal crosses between the A and B biotypes of Bemisia tabaci

Costa, H. S.; Brown, Judith K.; Sivasupramaniam, S.; Bird, Julio

doi:10.1017/s1742758400014703

Cited by 108 publications

(147 citation statements)

References 25 publications

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“…Nos EUA, desde os anos 80, a mosca branca tem sido responsável por severos danos em berinjela, pepino, melão, tomate, feijão e batata (Costa et al 1993), sendo que em 1991 as perdas foram estimadas em meio bilhão de dólares (Perring et al 1993).…”

Section: Palavras-chaveunclassified

“…Em Guaíra verificaram-se altas infestações em abóbora, repolho, couve e alface, e em Miguelópolis houve intensa infestação em soja e algodão, com perdas de 100% (Lourenção et al 1999). A soja, uma das principais culturas exploradas no nosso país, tem sido alvo de severos ataques dessa praga (Costa et al 1993). Vários agricultores já tiveram grandes prejuízos devido à sua ocorrência e muitos chegaram a perder toda a produção (Ferreira & Avidos 1998).…”

Section: Palavras-chaveunclassified

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Exigências Térmicas de Bemisia tabaci (Genn.) Biótipo B (Hemiptera: Aleyrodidae)

Albergaria¹,

Cividanes²

2002

Neotrop. Entomol.

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-The development (egg-adult) of Bemisia tabaci (Genn.) B-biotype (=Bemisia argentifolii, Bellows & Perring), was studied in field conditions and in incubators at constant temperatures (15, 20, 25, 30 and 35±1ºC), using soybean, Glycine max (L.) Merrill, Msoy 8001, as host plant. The temperatures threshold (Tb) and the thermal constant (K) for egg, nymph and life cycle (egg-adult) were 11.1ºC / 98.8 degree-days; 6.8ºC / 383.8 degree-days and 8.3ºC / 472.6 degree-days, respectively. At the temperatures of 15 o C and 35ºC, insect viability was smaller. In the field, 70% of the adults emerged after 413,2 degree-day were accumulated. The degree-day pattern used was adequate for the previewing Bemisia tabaci B-biotype adult occurrence in field, and it can also be used to determine the number of generations in different areas of the country.KEY WORDS: Bemisia argentifolii, whitefly, degree-day, temperature, Glycine max, soybean.RESUMO -O desenvolvimento (ovo-adulto) da mosca-branca, Bemisia tabaci (Genn.) biótipo B (=Bemisia argentifolii, Bellows & Perring), foi estudado em condições de campo e em câmaras climatizadas, reguladas nas temperaturas constantes de 15, 20, 25, 30 e 35±1ºC, usando soja, Glycine max (L.) Merrill, cultivar Msoy 8001, como planta hospedeira. O limite térmico inferior de desenvolvimento (Tb) e a constante térmica (K) das fases de ovo, ninfa e ciclo biológico (ovo-adulto) foram 11,1ºC / 98,8 graus-dia, 6,8ºC / 383,8 graus-dia e 8,3ºC / 472,6 graus-dia, respectivamente. Nas temperaturas extremas (15 o C e 35ºC), a viabilidade dos insetos mostrou-se menor. No campo, a emergência de 70% dos adultos ocorreu depois de terem sido acumulados 413,2 graus-dia. O modelo de graus-dia utilizado mostrou-se adequado para a previsão de ocorrência de adultos de Bemisia tabaci biótipo B no campo, podendo também ser utilizado para determinação do número de gerações nas diferentes regiões do País.

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Section: Palavras-chaveunclassified

Exigências Térmicas de Bemisia tabaci (Genn.) Biótipo B (Hemiptera: Aleyrodidae)

Albergaria¹,

Cividanes²

2002

Neotrop. Entomol.

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“…At present, management of B. argentifolii depends mainly on chemical control but as this species is resistant to many insecticides, chemical control is difficult and resistance management is of high priority (Costa et al, 1993;Cahill et al, 1996;Palumbo et al, 2001). Also, chemical pesticides interfer with biological pest control, which is now the main means of pest control in modern greenhouses (van Lenteren, 2000).…”

Section: Introductionmentioning

confidence: 99%

Life-history parameters of Encarsia formosa, Eretmocerus eremicus and E. mundus, aphelinid parasitoids of Bemisia argentifolii (Hemiptera: Aleyrodidae)

Qiu

Lenteren

Drost³

et al. 2004

Eur. J. Entomol.

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Abstract. Life-history parameters (juvenile development time, adult longevity, host instar preference and rate of parasitism) of four parasitoids of Bemisia argentifolii (two strains of Encarsia formosa (D and B), Eretmocerus eremicus and Eretmocerus mundus) were studied in the laboratory. At 15°C juvenile development time was the shortest for E. formosa B (48 days), longest for E. eremicus (79.3 days) and intermediate for E. formosa D (62.8 days) and E. mundus (64 days) at 15°C. With increase in temperature, development time decreased to around 14 days for all species/strains at 32°C. The lower developmental threshold for development was 11.5, 8.1, 13.0 and 11.5°C for E. formosa D, E. formosa B, E. eremicus and E. mundus, respectively. E. formosa D and B, and E. mundus all appeared to prefer to parasitize 3 rd instar nymphs. The presence of hosts shortened adult longevity in most of the parasitoids, with the exception of E. formosa B, which lived longer than other species/strains irrespective of the presence of hosts. At 15°C daily parasitism was very low by all parasitoids. The two Encarsia strains had a constant, but low rate of reproduction during adult life, while the two Eretmocerus species had a very high rate of reproduction when one-day old, which then decreased very quickly. Lifetime fecundity, estimated using a non-linear model, indicated that it was higher for the two Encarsia strains than for the Eretmocerus species. Life history parameters reported in the literature for the four parasitoids are reviewed and compared with our results. Finally, the potential value for the biological control of whiteflies on greenhouse crops of parasitoids having either a high reproductive rate over a short period (Eretmocerus spp.) or a low rate of reproduction over a long period (Encarsia spp.) is discussed.

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“…B. tabaci is morphologically indistinguishable (Gill, 1990;Rosell et al, 1997) but varies considerably in its ability to transmit geminiviruses (Bedford et al, 1994), rate of development (Wang & Tsai, 1996) and ability to utilize different host plants (Brown & Bird, 1995). Biotype B (also known as B. argentifolii Bellows & Perring) is an extremely damaging pest of cotton and horticultural crops (Costa & Brown, 1991;Costa et al, 1993;De Barro & Driver, 1997). It is especially difficult to control as it is resistant to most of the insecticides used against whiteflies.…”

Section: Introductionmentioning

confidence: 99%

Molecular differentiation of the B biotype from other biotypes of Bemisia tabaci (Hemiptera: Aleyrodidae), based on internally transcribed spacer 1 sequences

Li¹,

Hu²,

Song³

et al. 2005

Eur. J. Entomol.

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Abstract. Bemisia tabaci (Gennadius) is a worldwide pest of vegetable, ornamental and field crops. Biotype B of B. tabaci, which is economically most important of the biotypes, is distinct from all other biotypes (non-B biotypes). Fourteen populations of B. tabaci were collected from different localities and host plants in the Chinese mainland and Taiwan, namely TWYDH (tassel flower, Taiwan), HNYC (tobacco, Hainan), GXNG (pumpkin, Guangxi), GDYPH (poinsettia, Guangdong), GDBSM (croton, Guangdong), GDFS (Chinese hibiscus, Guangdong), SHYPH (poinsettia, Shanghai), FJGS (sweet potato, Fujian), SDFQ (tomato, Shandong), BJXHL (squash, Beijing), XJQZ (eggplant, Xinjiang), XJYPH (poinsettia, Xinjiang), XJJM (abutilon, Xinjiang) and XJMH (cotton, Xinjiang). The internally transcribed spacer 1 sequences (ITS1) of ribosomal DNA of B biotype and other biotypes were sequenced and analyzed. The B biotype-specific primers were then designed for rapid identification of B biotype of B. tabaci. The results show that the diagnostic primer only gave a positive result with the B biotype. This is the first report of a rapid means of identifying B. tabaci B biotype using a diagnostic primer based on ribosomal DNA. This protocol is especially useful for identifying the B biotype in Bemisia populations consisting of several biotypes.

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Regional distribution, insecticide resistance, and reciprocal crosses between the A and B biotypes of Bemisia tabaci

Cited by 108 publications

References 25 publications

Exigências Térmicas de Bemisia tabaci (Genn.) Biótipo B (Hemiptera: Aleyrodidae)

Exigências Térmicas de Bemisia tabaci (Genn.) Biótipo B (Hemiptera: Aleyrodidae)

Life-history parameters of Encarsia formosa, Eretmocerus eremicus and E. mundus, aphelinid parasitoids of Bemisia argentifolii (Hemiptera: Aleyrodidae)

Molecular differentiation of the B biotype from other biotypes of Bemisia tabaci (Hemiptera: Aleyrodidae), based on internally transcribed spacer 1 sequences

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