scholarly journals Menace of Spiralling Whitefly, Aleurodicus dispersus Russell on the Agrarian Community

Author(s):  
P. P. Pradhan ◽  
Abhilasa Kousik Borthakur
2019 ◽  
Vol 18 (2) ◽  
pp. 127
Author(s):  
Purnama Hidayat ◽  
Denny Bintoro ◽  
Lia Nurulalia ◽  
Muhammad Basri

Species identification, host range, and identification key of whiteflies of Bogor and surrounding area. Whitefly (Hemiptera: Aleyrodidae) is a group of insects that are small, white, soft-bodied, and easily found on various agricultural crops. Whitefly is a phytophagous insect; some species are important pests in agricultural crops that can cause direct damage and can become vectors of viral diseases. The last few years the damage caused by whitefly in Indonesia has increased. Unfortunately, information about their species and host plants in Indonesia, including in Bogor, is still limited. Kalshoven, in his book entitled Pest of Crops in Indonesia, published in the 1980s reported that there were 9 species of whitefly in Indonesia. The information on the book should be reconfirmed. Therefore, this study was conducted to determine whitefly species and its host plants in Bogor and its surroundings. Whiteflies is identified based on the ‘puparia’ (the last instar of the nymph) collected from various agricultural plants, ornamental plants, weeds, and forest plants. A total of 35 species of whiteflies were collected from 74 species and 29 families of plants. The collwcted whiteflies consist of four species belong to Subfamily Aleurodicinae and 31 species of Subfamily Aleyrodinae. The most often found whitefly species were Aleurodicus dispersus, A. dugesii, and Bemisia tabaci. A dichotomous identification key of whiteflies was completed based on morphological character of 35 collected species. The number of whitefly species in Bogor and surrounding areas were far exceeded the number of species reported previously by Kalshoven from all regions in Indonesia.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fathiya M. Khamis ◽  
Fidelis L. O. Ombura ◽  
Inusa J. Ajene ◽  
Komivi S. Akutse ◽  
Sevgan Subramanian ◽  
...  

AbstractWhiteflies (Hemiptera: Aleyrodidae) are devastating agricultural pests of economic importance vectoring pathogenic plant viruses. Knowledge on their diversity and distribution in Kenya is scanty, limiting development of effective sustainable management strategies. The present study is aimed at identifying whitefly pest species present in Kenya across different agroecological zones and establish predictive models for the most abundant species in Africa. Whiteflies were sampled in Kenya from key crops known to be severely infested and identified using 16S rRNA markers and complete mitochondrial genomes. Four whitefly species were identified: Aleyrodes proletella, Aleurodicus dispersus, Bemisia afer and Trialeurodesvaporariorum, the latter being the most dominant species across all the agroecology. The assembly of complete mitogenomes and comparative analysis of all 13 protein coding genes confirmed the identities of the four species. Furthermore, prediction spatial models indicated high climatic suitability of T. vaporariorum in Africa, Europe, Central America, parts of Southern America, parts of Australia, New Zealand and Asia. Consequently, our findings provide information to guide biosecurity agencies on protocols to be adopted for precise identification of pest whitefly species in Kenya to serve as an early warning tool against T. vaporariorum invasion into unaffected areas and guide appropriate decision-making on their management.


2018 ◽  
Vol 15 (2) ◽  
pp. 207-214
Author(s):  
I Hossain ◽  
MMH Khan ◽  
SMH Jahan

The study was conducted to know the reproductive performance of spiralling whitefly on guava. Number of colony, eggs, 1st instar, 2nd instar, 3rd instar and 4th instar nymphs per five leaves ranged from 6 to 15, 8 to 32, 0 to 44, 0 to 22, 0 to 45 and 0 to 28, respectively. Maximum number of adults and nymphs were found in the month of January. Highest longevity of Aleurodicus dispersus (21.5 days) was recorded in adult while the lowest was in 2nd instar nymph (6.4 days). The number of colony/leaf and number of 3rd and 4th instar nymphs of A. dispersus had significant positive correlation with minimum and maximum temperature while non-significant positive correlation is observed between the number of egg/colony, the number 1st and 2nd instar nymphs with minimum and maximum temperature. A. dispersus showed nonsignificant positive correlation with minimum and maximum relative humidity regarding number of colony/leaf, 2nd instar nymph while nonsignificant negative correlation with 4th instar nymph.SAARC J. Agri., 15(2): 207-214 (2017)


2018 ◽  
Vol 80 (3) ◽  
pp. 1202
Author(s):  
Arati Ningombam ◽  
Susheel K. Sharma ◽  
Th. Surjit Singh ◽  
Narendra Prakash

2014 ◽  
Vol 1010-1012 ◽  
pp. 1175-1180
Author(s):  
Jun Yu Chen ◽  
Guang Chang Ma ◽  
Yue Guan Fu

Laboratory experiments were conducted to the super-cooling point (SCP) for Aleurodicus dispersus Russell. The results showed that the SCP of A. dispersus was varied in different seasons. The SCP of eggs was-23.21°C in spring, which was lowest than others. The SCP of male adult was-11.10°C in winter, which was highest. For individuals, the lowest SCP was 1th instar nymph, the highest was male adults. The sequence of SCP from low to high is eggs <the 1st instar nymph <2nd instar <3rd instar <4th instar <adults. The SCP of eggs and 1st instar nymph were lowest in every season, which lower than adults significantly (P<0.01). The results revealed stronger cold hardiness in egg stages than adults.


2003 ◽  
Vol 2 (3) ◽  
pp. 270-272 ◽  
Author(s):  
M.N. Islam ◽  
M.A. Rahim ◽  
M.S. Alam ◽  
N. Naher

2003 ◽  
Vol 6 (24) ◽  
pp. 2050-2053 ◽  
Author(s):  
M.M. Rashid ◽  
M. Mofazzel H ◽  
M.Z. Alam ◽  
M. Ibrahim ◽  
M.K.A. Bhuiyan

Sign in / Sign up

Export Citation Format

Share Document