Evaluation of Pheromone Traps for the Management of Pod Borer, Helicoverpa armigera (Hubner) in Redgram [Cajanus cajan (L.) Millsp.] Ecosystem

LekhaPriyanka, S.; Saminathan, V. R.; Sithanantham, S.; Ambethgar, V.; Manivannan, N.

doi:10.54083/resbio.2.1.2020.08-10

Cited by 4 publications

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“…These seasonal differences in captures may be either related to the seasonal changes of the growth of the cotton plants and their fruiting organs or to the population fluctuations of the insect. Priyanka et al [33] found that traps placed at canopy level in pigeon-pea cultivation gathered a higher number of male adults of H. armigera than the traps that were placed one and two feet above and below the canopy level. The seasonality of the captures of H. armigera at traps placed at different heights has been also reported by Ujjan et al [29], who observed the highest catches at chickpea crops in traps placed at 6 feet (183 cm) during the crop season and at 4 feet (122 cm) after harvest.…”

Section: Discussionmentioning

confidence: 99%

“…Apart from the characteristics of the traps, other factors that affect the capture rate in pheromone traps are the trap placement, the pheromone source and the trapping location [24,26,27,30]. There are a number of studies on the impact of the height at which the trap is placed on the number of captures of several insect species [27,[29][30][31][32][33]. Kavallieratos et al [27] reported that trap height had no influence on the adult male captures of the olive moth, Prays oleae (Bernard) (Lepidoptera: Yponomeutidae), in olive orchards.…”

Section: Introductionmentioning

confidence: 99%

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Factors Affecting Adult Captures of the Cotton Bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) in Pheromone-Baited Traps

et al. 2021

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The effects of funnel-trap color, trap height and pheromone formulation on the adult captures of the cotton bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) were evaluated in traps that were suspended in cotton fields in central Greece. Briefly, in a first trial, the efficacy of funnel traps of three different colors, i.e., green, striped (with black and white stripes) and white, was comparatively evaluated, whereas in a second trial green funnel traps were placed at three heights, i.e., 30, 60 and 90 cm from the ground. Finally, in a third trial we tested the efficiency of green funnel traps with three commercially available pheromone lures. Considering the overall captures, trap color and pheromone formulation affected male captures, whereas trap height had no influence. Captures notably increased in all traps from late August to mid-September. In total, the white funnel trap captured more moths than the green or striped funnel traps. Placement of the traps at different heights did not significantly affect captures, but seasonal differences were observed at individual dates during the trapping period. Barrettine’s pheromone lure provided significantly more captures than the other two (Russell, Trécé) in some of the trap-check dates. The results can be further utilized in the monitoring protocols of H. armigera in cotton fields.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Factors Affecting Adult Captures of the Cotton Bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) in Pheromone-Baited Traps

et al. 2021

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“…India stands as a prominent global hub for pulse cultivation, contributing to approximately 35-36% of the total pulse-growing area and 27-28% of pulse crop production worldwide (Swathi et al, 2018). In India, an impressive 12-14 million tons of pulses are produced annually, utilizing approximately 22-24 million ha of agricultural land for this purpose (Cherif © 2023 Priyanka et al, 2023 mobility, rapid reproduction rate and the ability to enter diapause are key factors that contribute to its status as a major pest of pulses (Fitt, 1989;Lekha Priyanka et al, 2020). This pest initiates its infestation during the seedling stage and subsequently consumes flowers and developing seeds within pods until the crop reaches maturity (Lekha Priyanka et al, 2020;Mandal and Roy, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…However, the intensive and indiscriminate application of these pesticides can result in detrimental consequences for the ecosystem. These include the development of resistance to insecticides, environmental degradation, negative impacts on beneficial plant and animal species, and the resurgence of secondary pests (Lekha Priyanka et al, 2020;Phokela et al, 1990). Managing pod borers with chemical insecticides is complicated due to the cryptic behavior of the larvae.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Abiotic Factors on Trap Catch of Gram Pod Borer, Helicoverpa armigera (Hubner) in Redgram, Cajanus cajan (L.) Millsp. Ecosystem

Priyanka,

Saminathan,

Manivannan

et al. 2023

planthealth

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An experiment was conducted to study the influence of weather parameters on trap catches of Helicoverpa armigera (Hubner) in redgram Cajanus cajan (L.) ecosystem during kharif 2017 at experimental farm of NPRC, Vamban and farmer’s field at Vadakaddu with green colour funnel pheromone traps containing Heli lure. The highest catch (98 moths/ 5 traps) was recorded on January 2nd SMW at Vamban and on 52nd SMW of December at Vadakaddu. In both the locations lowest catch of 20 moths/ 5 traps and 30 moths/ 5 traps were recorded on 35th SMW. The moth catches had highly significant negative correlation with maximum temperature (r = -0.79**), (r = -0.79**), minimum temperature (r = -0.66**), (r = -0.68**), wind speed (r = -0.71**), (r = -0.73**), rainfall (r = -0.54**), (r = -0.51**), rainy days (r = - 0.54**), (r = -0.52**) and sunshine hours (r = - 0.44**), (r = -0.42**) at Vamban and Vadakaddu, respectively. But there was highly significant positive correlation with relative humidity (r = 0.78**) and (r = 0.76**) at Vamban and Vadakaddu, respectively. The regression analysis resulted with an R2 value of 0.791, which indicates that 79.1% catches depends on all the weather parameters at Vamban and R2 value of 0.829 indicating that 82.9% of catches depends on all the weather parameters at Vadakaddu.

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Effect of Trap Type and Height on the Captures of the Pink Bollworm, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae), in Pheromone-Baited Traps in Cotton

Katranas,

Vassilakos,

Rumbos

et al. 2024

Agronomy

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The impact of trap type and height on the captures of adults of the pink bollworm, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae), was assessed in cotton fields in three experimental sites (Nikaia, Nees Karyes, and Koilada) in Central Greece. Initially, the effectiveness of three different traps (white Delta, red Delta, and green Funnel) was compared. Subsequently, white Delta traps were positioned at three heights, i.e., 30, 60, and 90 cm, above ground level. Overall, captures notably increased in all traps from late July to mid-September. Funnel traps had poor performance for the captures of P. gossypiella adults, as compared with the respective figures for the other two Delta traps. Specifically, in two experimental sites (Nikaia and Koilada), both Delta traps cumulatively captured significantly more adults than the Funnel trap throughout the monitoring period. In the third site (Nees Karyes), the red Delta trap captured in total significantly more adults than the other two tested traps. Moreover, we found that traps in Nikaia placed at 90 cm captured significantly less adults as compared with the other two trap heights. The same trend was observed in Koilada; however, differences were significant only between traps at 30 and 90 cm. No significant differences were determined among different heights in the third site (Nees Karyes). These findings offer valuable insights for the monitoring protocols of P. gossypiella in cotton fields, on the basis of a standardized trapping strategy, that can take into account a wide range of factors, such as trap design and trap height.

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Evaluation of Pheromone Traps for the Management of Pod Borer, Helicoverpa armigera (Hubner) in Redgram [Cajanus cajan (L.) Millsp.] Ecosystem

Cited by 4 publications

References 0 publications

Factors Affecting Adult Captures of the Cotton Bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) in Pheromone-Baited Traps

Factors Affecting Adult Captures of the Cotton Bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) in Pheromone-Baited Traps

Influence of Abiotic Factors on Trap Catch of Gram Pod Borer, Helicoverpa armigera (Hubner) in Redgram, Cajanus cajan (L.) Millsp. Ecosystem

Effect of Trap Type and Height on the Captures of the Pink Bollworm, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae), in Pheromone-Baited Traps in Cotton

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