Bemisia argentifolii. Bellows & Perring Bemisia tabaci Biotype B (Gennadius, ). Common Names. silverleaf whitefly, sweetpotato whitefly. Abstract. In a greenhouse experiment we documented the effects of low, medium, and high nitrogen in cotton on development and honeydew production by the. Abstract. The suitability of the whitefly Bemisia argentifolii Bellows & Perring and the potato aphid, Macrosiphum euphorbiae (Thomas), as prey for 2 indig.

Author: Mazragore Salmaran
Country: Namibia
Language: English (Spanish)
Genre: Photos
Published (Last): 21 September 2008
Pages: 153
PDF File Size: 13.19 Mb
ePub File Size: 11.53 Mb
ISBN: 724-5-69267-193-5
Downloads: 26782
Price: Free* [*Free Regsitration Required]
Uploader: Tall

Journal of General Virology, 79 4: United States Department of Aryentifolii. Control of two whitefly species, Bemisia tabaci and Trialeurodes vaporariorumby a preparation of Verticillium lecanii.

Silverleaf whitefly

Applied Biological Control Research. First instar nymphs which hatch from eggs are mobile, and walk a short distance before selecting sites where they settle to commence feeding.

Whitefly nymphs infected with B. European Journal of Plant Pathology, Parasitized whitefly nymphs in which immature parasitoids are greater than four days old are immune to infection by A. If a high number of yellow parasitoids are seen, the shipment can be assumed to have arrived in good condition. Field studies conducted in Australia have shown that the use of floating row covers coupled with insect growth regulators increase the yield of harvested fruit and quality and reduce virus damage to cucurbits.

Detection and Inspection Top of page Numerous chlorotic spots develop on the leaves of affected plants, which may also be disfigured by honeydew and associated sooty moulds.


Bemisia tabaci (Gennadius) or Bemisia argentifolii Bellows & Perring

Aqueous extracts of Azadirachta indica against Bemisia tabaci B biotype Hemiptera: National Invasive Species Information Center: It quickly moved into other southern states with intensive agricultural and horticultural industries Texas, Arizona, and Californiaand displaced the original Bemisia tabaci A biotypewhich can no longer be found in the United Bsmisia.

The stage gets its name from the prominent red eyes that are much larger than the eyes of earlier nymphal instars.

Identification of a whitefly species by genomic and behavioral studies. Insecticide resistance in the sweetpotato whitefly, Bemisia tabaci Homoptera: Further price reduction for E. However, a study by De Courcy Williams et al.

Present legislation relates to B. On squash they induce a condition known as silverleaf in argdntifolii the foliage becomes highly reflective and the fruit is pale in color.

Bemisia argentifolii

This page was last modified Journal of Be,isia Entomology. Retrieved from ” https: A modified alimentary system concentrates sugars in the anterior midgut while excess fluids are diverted to the hindgut and excreted.

Within these cooler regions, MEAM1 can survive within a protected environment and could feasibly spread virus diseases to new locations. Results indicate that an E. Nymphs feed by stabbing into the plant with their mouth-parts and sucking up plant juices.

This species expanded the distribution area rapidly and was distributed in 42 prefectures out of 46 prefectures 4 years later after first finding. In protected plant culture, such as greenhouses, it is not possible to rely on natural biological control. Plant Disease, 77 9: Another important control is the use of other crops as a source of trap crops.


Aleyrodidae in member countries of the Secretariat of the Pacific Community. As seen in Pakistan, it is impossible to calculate the economic impact of MEAM1 alone in these areas. Whitefly distribution within plants and inter-specific competition.

The second, third and fourth nymphal instars are immobile with atrophied legs and antennae, and small eyes. This improved the effectiveness of the parasitoid wasps by ensuring they were continuously available to attack the pests, but in argentufolii that reflected the shrinking population of pests. Parasitoids differ from parasites in that they kill their host upon completing development. New vegetable disorders in Florida.

Silverleaf whitefly – Wikipedia

Different host plant species can significantly affect whitefly survivorship and reproductive rates For example, at 25 o C, egg to adult development for B. Declines in the aesthetic quality of ornamental plants in greenhouses because of honey dew, black sooty mold contamination, or flying adults are problems associated with high density whitefly populations.

Crop Protection, 20 9: In Japanse with English summary.

The silverleaf whitefly was found in Aichi Prefecture in for the first time in Japan. Weeds also often harbour whitefly-transmitted viruses Bedford et al.