Intrinsic Rate of Increase (r&lt;sub&gt;m&lt;/sub&gt;) of &lt;i&gt;Aphis Gossypii&lt;/i&gt; Glover Infesting Brinjal Plants

Rahman, M. M.; Sarker, Pankoj Kumar; Das, Bidhan Chandra

doi:10.3329/jbs.v17i0.7118

Cited by 2 publications

(2 citation statements)

References 11 publications

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“…The obtained results found in harmony with those of Rattanapum, (2012) and Rahman et al, (2009) who recorded Aphis gossypii on eggplant (bringal), Solanum melongena. Also, Bodlah, et al, (2011) recorded Rosa sp, Gossypium sp.,are within host plants range of A. gossypii.…”

Section: Nettle Leaf or Goosefoot Chenopodium Murale: Water Melon Csupporting

confidence: 87%

Annual Occurrence and Population Dynamics, of Cotton Aphids, Aphis gossypii Glover on Specific Host Plants at Sharkia Governorate, Egypt

Ibrahim

Megahed

2017

Egyptian Academic Journal of Biological Sciences. A, Entomology

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This study was conducted at Zagazig region, Sharkia Governorate during the period extended from the end of November, 2013 till early December, 2015 to determine host plants list of Cotton Aphid, Aphis gossypii Glover, occurrence on hosts, in addition to figure its annual population dynamic on the important economic and weeds/wild plant hosts to employ these information in preparing effective integrated aphids management program. The obtained results revealed that the cotton aphid colonized wide range of 37 economic host plant species and 23 weeds/wild plant species follow 22 plant families. The highest occurrence ratio of 38.9 %, was recorded on the family Malvaceae plants while, the lowest one of 0.069 % recorded on the family liliaceae (garlic plants). The mean numbers of A. gossypii were varied as host plant variation where the highest occurrence ratio of 16.81 % was recorded on cotton plants; Gossypium barbadenc L. followed by okra plants, Hibiscus esculentus L. presented 11.456 %; while the lowest ratio of 0.043 % was recorded on aellen-wild beet, Beta vulgaris Perennis. In regarded to the weed/wild plants the highest harboring ratio of 5.023% was recorded on purslane, Pertulaca oleracea while the lower ratio of 0.079 % was recorded on yellow weed sorrel, Oxalis corniculata plants. The cotton plants, G. barbadenc found harbored A. gossypii with longest periods extended from early April till early October during growing season of 2014 and from early-may till mid-October 2015, with the highest peak of 320 individuals / leaf recorded at 15 th August, 2014; followed by the peak of 270 individuals / leaf recorded at 30 th July, 2015 on lantana plants. In regarded to the general annual population dynamic, there were two critical activity periods, where the aphids recorded on limited number of plant hosts and with low numbers, the 1 st period extended from 6 th Feb., till 5 th Apr., 2014 with 16 hosts only and the population density ranged 1 individual/leaf on scarlet pimpernel, Anagallis avensis to 47 individual/leaf on little mallow, Malva parriflora. The 2 nd activity period from 2 nd Jan., till 20 th Feb., 2015 with 14 host only and the population density ranged from 1 individual/leaf on shepherd purse, Capsella bursa-pastoris to 66 individual/leaf on little mallow, M. parriflora. That means the obvious hosts play important role in the annual dispersal and dynamic of A. gossypii inter between its main and alternative hosts throughout the activity periods.

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Section: Nettle Leaf or Goosefoot Chenopodium Murale: Water Melon Csupporting

confidence: 87%

Annual Occurrence and Population Dynamics, of Cotton Aphids, Aphis gossypii Glover on Specific Host Plants at Sharkia Governorate, Egypt

Ibrahim

Megahed

2017

Egyptian Academic Journal of Biological Sciences. A, Entomology

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“…occurrence periods of A. gossypii on eggplant are in harmony with those ofIbrahim and Megahed (2017) andRahman et al (2009) who studied the population dynamic of A. gossypii on different crops including eggplants. The most abundant predators of the cotton aphid were the coccinellid predators as the same findings ofLu et al (2015).…”

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confidence: 85%

Ecological and control studies of the cotton aphids, Aphis gossypii (Glover.) on eggplant, Solanum melongena L.

Darwish

Eid

2021

Journal of Plant Protection and Pathology

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The present study was conducted to estimate the distribution of apterous and alates cotton aphids within and between plants. Also, population dynamic of cotton aphid and its predators, and the effects of foliar spray with elicitors viz, salicylic acids (SA), jasmonic acids (JA) and β-aminobutyric acid (BABA) on the population density of A. gossypii were estimated. The experiments were carried out in an eggplant field at Nobaria district, El-Beheira Governorate, Egypt. The results of spatial distribution of apterous A. gossypii by using the diffusion coefficient (S 2 / m) was >1, by using David-Moore index (IDM) was positive value for negative binomial, by using patch index (m*/m) was >1 and with using Cassie index (Ca)was>0 and positive values. All these indices are indicative of aggregation (the individuals tend to occur in clumps) distribution model for the apterous A. gossypii in all the sampling dates throughout the two successive seasons 2019 and 2020. On contrary, all of these indices refer to a uniform spatial distribution for the alates A. gossypii., there were proportionally greater numbers of the alates individuals on the middle part of eggplants. The results also showed that the seasonal mean population of cotton aphids was higher during 1 st season than during the 2 nd season The apterous aphid populations were significantly higher within the upper level than other levels of the plant. The foliar spray of JA, SA and BABA resulted in decreasing the cotton aphid population density in eggplant crop. SA proved to be less efficacious than JA and BABA.

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Intrinsic Rate of Increase (r<sub>m</sub>) of <i>Aphis Gossypii</i> Glover Infesting Brinjal Plants

Cited by 2 publications

References 11 publications

Annual Occurrence and Population Dynamics, of Cotton Aphids, Aphis gossypii Glover on Specific Host Plants at Sharkia Governorate, Egypt

Annual Occurrence and Population Dynamics, of Cotton Aphids, Aphis gossypii Glover on Specific Host Plants at Sharkia Governorate, Egypt

Ecological and control studies of the cotton aphids, Aphis gossypii (Glover.) on eggplant, Solanum melongena L.

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