Population Dynamics of Sucking Pests with Relation to Weather Parameters in Bt Cotton in Buldana District, Maharashtra

Nemade, P. W.; Budhvat, K. P.; Wadaskar, P. S.

doi:10.20546/ijcmas.2018.701.075

Cited by 8 publications

(5 citation statements)

References 1 publication

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“…This trend persisted from the last couple of years and expected to continue in the coming future. This is mainly due to the favorable weather conditions (high temperature and relative humidity) for sucking insects, lack of resistant cultivars and pesticide resistance (Amjad and Aheer 2007;Razaq et al 2013;Nemade et al 2018). In present study, two peaks of the whitefly population have been observed during the growing season.…”

Section: Discussionsupporting

confidence: 45%

Evaluation of cotton germplasm for morphological and biochemical host plant resistance traits against sucking insect pests complex

et al. 2021

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Background Sucking insect pests cause severe damage to cotton crop production. The development of insect resistant cotton cultivars is one of the most effective measures in curtailing the yield losses. Considering the role of morphological and biochemical host plant resistance (HPR) traits in plant defense, 12 cotton genotypes/varieties were evaluated for leaf area, leaf glanding, total soluble sugars, total soluble proteins, total phenolics, tannin and total flavonoids against fluctuating populations of whitefly, thrips and jassid under field conditions. Results The population of these insects fluctuated during the growing season and remained above threshold level (whitefly > 5, thrips > (8–10), or jassid > 1 per leaf) during late June and early July. Strong and negative association of whitefly (r = − 0.825) and jassid (r = − 0.929) with seed cotton yield was observed. Mean population of insects were the highest in Glandless-1 followed by NIA-82 and NIA-M30. NIAB-Kiran followed by NIAB-878 and Sadori were the most resistant, with the mean population of 1.41, 1.60, 1.66 (whitefly); 2.24, 2.32, 2.53 (thrips) and 0.37, 0.31, 0.36 (jassid), respectively. The resistant variety NIAB-Kiran showed less soluble sugars (8.54 mg·g− 1), soluble proteins (27.11 mg·g− 1) and more phenolic (36.56 mg·g− 1) and flavonoids (13.10 mg·g− 1) as compared with the susceptible check Glandless-1. Moreover, all insect populations were positively correlated with total soluble sugars and proteins. Whitefly populations exhibited negative response to leaf gossypol glands, total phenolics, tannins and flavonoids. The thrips and jassid populations had a significant and negative correlation with these four biochemical HPR traits. Conclusion The identified resistant resources and HPR traits can be deployed against sucking insect pests’ complex in future breeding programs of developing insect resistant cotton varieties.

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Section: Discussionsupporting

confidence: 45%

Evaluation of cotton germplasm for morphological and biochemical host plant resistance traits against sucking insect pests complex

et al. 2021

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“…These results are in close agreement with the findings of Chauhan et al (2017) [5] who reported that, peak incidence of aphids was recorded in the month of September. Similarly, the present findings are also in agreement with Nemade et al (2018) [9] who observed that, the population of aphids showed non-significant negative correlation with morning and evening relative humidity and significant positive correlation with maximum temperature. The results on influence of meteorological variables on leafhopper population are in close occurrence with the findings of Kataria et al (2017) [7] who reported peak incidence of leafhoppers was observed during second fortnight of July and their population showed nonsignificant positive correlation with temperature, relative humidity and negative correlation with rainfall.…”

Section: Resultssupporting

confidence: 94%

Studies on seasonal incidence of sucking pests and pink bollworm, <em>Pectinophora gossypiella</em> (Saunders) in cotton (<em>Gossypium </em>spp.)

Divya¹,

Navi²,

Sugeetha³

et al. 2020

Int. J. Chem. Stud.

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A field experiment was conducted at AICRP on cotton, Haradanahalli, Chamarajanagara during kharif 2018 to know the population dynamics of insect pests of cotton on HB2110 cultivar. The peak incidence of aphids (64.28 aphids/3 leaves), leafhoppers (5.24 leafhoppers/3 leaves), thrips (5.51 thrips/3 leaves) and whiteflies (4.97 whiteflies/3leaves) were observed during 36, 28, 40 and 38 th SMW. Pink bollworm incidence was started during 32 SMW and attended its severity at 46 th (15 larvae/20 bolls).The correlation results of the meteorological variables with insect population revealed that aphids, thrips, whiteflies and PBW showed significant positive correlation with maximum temperature while, leafhopper showed positive non-significant correlation. However, all the above pests showed nonsignificant negative correlation with minimum temperature, evening relative humidity and rainfall except leafhopper and aphids showed significant positive correlation and non-significant negative correlation with morning relative humidity, respectively.

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“…1). Similar results were observed with the findings of Prashant et al [3] who recorded 0.51 to 4.42 leafhoppers/3 leaves at 31 and 41 DAS. These results also corroborate with findings of Arif et al [4] who recorded maximum leafhopper population to be 1.85 per leaf during second week of August.…”

Section: Resultssupporting

confidence: 92%

Study on the Incidence of Sucking Pests and Pink Bollworm in Cotton

Rajasekhar

Subbaiah

Prasad

et al. 2023

JEAI

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Sucking pests and pink bollworm are serious pest of cotton one after the other in India by causing serious yield losess. The present investigation was carried out in three major cotton growing mandals of NTR district to understand the level of pest incidence in Bt cotton during Kharif, 2022-23 on regular interval. Among the sucking pests only thrips population recorded 32.26 no/3 leaves and crossed the ETL at 45 DAS. Remaining sucking pests such as Leafhopper, whitefly and aphid did not crossed ETL during crop growth period and highest incidence of 5.92, 4.04 and 27.14 no/3 leaves was recorded respectively at 45, 60 and 120 DAS. Whereas pink bollworm recorded 23.10% rosette flowers, 44.04% boll damage in Bheemavaram village of Vastavai mandal and 40.83% locule damage in Konakanchi village of Penuganchiprolu mandal.

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Population Dynamics of Sucking Pests with Relation to Weather Parameters in Bt Cotton in Buldana District, Maharashtra

Cited by 8 publications

References 1 publication

Evaluation of cotton germplasm for morphological and biochemical host plant resistance traits against sucking insect pests complex

Evaluation of cotton germplasm for morphological and biochemical host plant resistance traits against sucking insect pests complex

Studies on seasonal incidence of sucking pests and pink bollworm, <em>Pectinophora gossypiella</em> (Saunders) in cotton (<em>Gossypium </em>spp.)

Study on the Incidence of Sucking Pests and Pink Bollworm in Cotton

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