Population Dynamics and Control of Certain Pests Infesting Green Bean (Phaseolus Vulgaris) at Qalubiya Governorate, Egypt

Amaar, Mona I.; El-Refai, S.A.; Rashwan, Rania S.; Hegab, M.

doi:10.21608/ejar.2014.156372

Cited by 3 publications

(5 citation statements)

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“…The combined effect of maximum, minimum temperature and the mean percentage of relative humidity in addition age of plant factors as a group (E.V) showed responsible of 77.78% , 66.34%and 77% effects on the population dynamics of T. urticae movable stage throughout 2019-2020 season, respectively. This results agree with Amaar et al (2014) who showed that minimum, maximum temperature had significant negative effects on T. urticaee population fluctuation during the second .While the mean relative humidity had insignificant positive effect in both seasons. Data agree with Nyoike and Liburd (2012) in USA, The divergence in mite population between the two growing seasons was attributed mainly to temperature differences between the two seasons that affected mite population development and establishment.…”

Section: Results and Disscussion 1-population Of T Urticae On Three S...supporting

confidence: 92%

Effect of some Ecological Factors on the Population of Tetranychus Urticae on Strawberry

Goda

Hegab

Khayat³

et al. 2023

Journal of Plant Protection and Pathology

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The experiment was conducted in Hemaida ELsohby district , Qalubiya Governorate , Egypt, during two successive seasons ( 2018-2019 and 2019-2020 )to study the effect of some ecological factors (Max ,Min Temperature ,Relative Humidity (RH) and plant age) on seasonal fluctuations of Tetranychus urticae in three strawberry cultivars (Fertona, Felorida and Festival). Results showed that the correlation was significant negative effects of maximum and minimum temperature on the seasonal fluctuations of Tetranychus. urticae movable stage for the three cultivars during both seasons. The correlation between relative humidity and the seasonal fluctuations of Tetranychus. urticae movable had insignificant negative effect stage for the three Cultivars, during the first season 2018-2019, but it had insignificant positive effect in the second season2019-2020. Also, age of plant had significant negative correlation on the population of Tetranychus urticae in the two seasons.

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Section: Results and Disscussion 1-population Of T Urticae On Three S...supporting

confidence: 92%

Effect of some Ecological Factors on the Population of Tetranychus Urticae on Strawberry

Goda

Hegab

Khayat³

et al. 2023

Journal of Plant Protection and Pathology

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“…Whereas, the lowest was 0.2 miner per leaf in 24 th November, 2016 cowpea growing season. Similarly, [13] indicated that the population densities of whitefly and cowpea leaf miner were quit high during 2011-2012 bean growing season, but they increased for the next season. They suggested presence of two peaks for the pests during the season based on temperature and relative humidity, as they found relative humidity had a positive effect on cowpea leaf miner.…”

Section: Resultsmentioning

confidence: 97%

The Response of Leaf Miner Liriomyza trifolii to Cowpea Vigna spp Plant

Alghadban¹,

Najim²,

Alnahawandy³

2017

JoBRC

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This study was conducted in a field located at Department of Biology/College of Sciences/University of Baghdad, from the period between the Mid of August to the second half of October 2015, in order to study the population density of cowpea leaf miner on California Ramshorn cowpea and local varieties (Bayader) and their natural enemies. The result showed fluctuation of the population density for Liriomyza trifolii on the American variety. Two peaks for population density were shown and the second was higher than the first. The highest population density was 6.5 leaf miner/ leaf while the lowest was 0.7 leaf miner/leaf at the beginning of sampling. For the local variety, three peaks were recorded. The first was the highest with 2.61leaf miner/leaf and the lowest was 0.2 leaf miner/leaf. Population density of insect was higher on American variety has higherthan the local variety in its protein content which reached to 24.3%. Two hymenopteran parasites Pediobius matallicus and Diglyphus isaaea belong to the family Eulophidae were recorded on L. trifolii. This study, the first was conducted on the leaf miner on this host plant.

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“…This result were agree with Hegab et al (2005) who indicated that B. tabaci population increased from August and peaked in December. Also, Amaar et al (2014) reported that the activity period of B. tabaci nymphs was during October and November. On the other hand, the whitefly population was decreased when the temperature was less than 15 °C .…”

Section: The Relationship Between Temperature and Relative Humidity And Bemisia Tabaci Population Density Infestingmentioning

confidence: 99%

“…The white fly, Bemisia tabaci (Gennadius) (Homoptera: Aleyrodidae), is highly polyphagous and has been recorded on a very wide range of cultivated and wild plants. In Egypt, B. tabaci is among the pests that inflict a heavy toll on P. vulgaris production (Amaar et al, 2014). B. tabaci sucks the sap from plants causing wilting, yellowing, shedding leaves and reduces growth rates and productivity if infestations are severe (Oliveira et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

“…In addition, they produce honeydew which supports sooty mould growth, which reduces photosynthesis and decreases plant vigor (Oliveira et al, 2001). The environmental conditions such as temperature and relative humidity are considered limiting factors to the growth and fertility of B. tabaci (Amaar et al, 2014 andGamila Sh. Selem et al 2016).…”

Section: Introductionmentioning

confidence: 99%

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Population Dynamics of the Whitefly, Bemisia Tabaci (Gennadius) (Homoptera: Aleyrodidae) on Common Bean, Phaseolus Vulgaris in Relation to Cultivar, Temperature and Humidity

Safe

Naiem

Abdel-Whab

et al. 2018

Alexandria Science Exchange Journal

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The objectives of this study were to find the correlation between population dynamics of the whitefly, Bemisia tabaci, Phaseolus vulgaris cultivars, temperature and humidity during the summer and winter growing seasons of 2013 and 2014. The three P. vulgaris cultivars screened were Copy, Polesta and Manga. In 2013 and 2014 cropping seasons, the population densities of B. tabaci gradually increased from the 3 rd week of March until the 4 th week of April. For, the population density increased and reached a peak from the 1 st week of May, and then the population density decreased gradually from the 4 th week of May until the 3 rd week of June in 2013 and 1 st of June in 2014. Densities of this pest typically increased as the growing season progressed and reached a peak in November and started to decrease from 1 st of December until the end of them. In 2013 and 2014 cropping seasons, the population densities gradually increased from the 2 nd week of October until the 4 th week of October. Furthermore, the population density reached a peak from the 1 st week of November, and then decreased gradually from the 4 th week of November until the 4 th week of December in 2013 and 2014. In 2013 summer cropping season, the cultivars Copy and Polesta were the most infested varieties. A similar trend was observed during 2014 summer growing season. In 2013 winter cropping season, the cultivars Copy and Manga were more susceptible to white fly infestation than Polesta cultivar. A similar picture was obtained during the winter cropping season of 2014. The most infested varieties were Copy and Manga respectively. Whereas Polesta variety was the least infested. B. tabaci population density was positively affected by temperature in 2013 and 2014 summer growing seasons, where the correlation coefficient were 0.64 and 0.6, respectively. In contrast, in 2013 and 2014 winter cropping season the relationship between B. tabaci population and temperature was insignificant and/or significant and negative with a correlation coefficient of -0.14 and -0.61 respectively. The results revealed that the relative humidity showed nonsignificant positive association with B, tabaci abundance in 2013 summer growing season with correlation coefficient of 0.08. On the other hand, B. tabaci density showed nonsignificant negative association with relative humidity in 2014summer season and 2013 winter seasons and significant negative association in 2014 winter season with correlation coefficients of 0.18, 0.73 and 0.32 respectively.

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Population Dynamics and Control of Certain Pests Infesting Green Bean (Phaseolus Vulgaris) at Qalubiya Governorate, Egypt

Cited by 3 publications

References 0 publications

Effect of some Ecological Factors on the Population of Tetranychus Urticae on Strawberry

Effect of some Ecological Factors on the Population of Tetranychus Urticae on Strawberry

The Response of Leaf Miner Liriomyza trifolii to Cowpea Vigna spp Plant

Population Dynamics of the Whitefly, Bemisia Tabaci (Gennadius) (Homoptera: Aleyrodidae) on Common Bean, Phaseolus Vulgaris in Relation to Cultivar, Temperature and Humidity

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