Stage preference and functional response of Rhynocoris longifrons (Stål) (Hemiptera: Reduviidae) on three hemipteran cotton pests

Sahayaraj, K.; Kalidas, Subramanian; Tomson, Majesh

doi:10.1590/s1516-89132012000500013

Cited by 16 publications

(7 citation statements)

References 20 publications

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“…In this study, higher predation rates were recorded for R. fuscipes feeding on D. cingulatus than on P. solenopsis . In support of this finding, Sahayaraj et al . reported the efficacy of R. longifrons against cotton pests such as A. gossypii , D. cingulatus and P. solenopsis and reported similar observations to reduviids belonging to this genus.…”

Section: Discussionsupporting

confidence: 52%

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Mass rearing and augmentative biological control evaluation of Rhynocoris fuscipes (Hemiptera: Reduviidae) against multiple pests of cotton

Tomson

Sahayaraj

Kumar

et al. 2017

Pest Management Science

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Section: Discussionsupporting

confidence: 52%

“…In other similar studies, field releases of P. plagipennis and R. marginatus were successful in reducing S . litura, H. armigera and A. craccivora populations in cotton and groundnut fields . However, there are no reports available concerning the utilization of an augmentative release of R. fuscipes for cotton pest management.…”

Section: Discussionmentioning

confidence: 99%

Mass rearing and augmentative biological control evaluation of Rhynocoris fuscipes (Hemiptera: Reduviidae) against multiple pests of cotton

Tomson

Sahayaraj

Kumar

et al. 2017

Pest Management Science

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“…), Phenacoccus solenopsis (Tinsley), Aphis gossypii (Glover), Euproctis mollifera (Thunberg), and Anomis flava (Fabricius) [ 31 , 32 , 33 , 34 , 35 ]. In India, among several reduviid species, Rhynocoris kumarii Ambrose and Livingstone has been reported to feed on economically important agricultural arthropod pests under controlled and field conditions [ 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 ]. In cotton agroecosystems, augmentative releases of this predator have been recommended for the management of S. litura , H. armigera , and E. mollifera [ 37 , 40 ], whereas in okra, the reduviids have been found effective against H. armigera and A. flava [ 38 ].…”

Section: Introductionmentioning

confidence: 99%

Lethal and Sublethal Effects of Three Microbial Biocontrol Agents on Spodoptera litura and Its Natural Predator Rhynocoris kumarii

Sahayaraj

Subash

Allingham³

et al. 2018

Insects

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Entomopathogenic microbes such as Spodoptera litura nucleopolyhedrovirus (SpltNPV), Metarhizium anisopliae, and Pseudomonas fluorescens are biological agents used for the control of multiple arthropod pests. The objective of this study was to assess their effects on the biological parameters of Spodoptera litura (Lepidoptera: Noctuidae) larvae, and its natural reduviid predator Rhynocoris kumarii (Hemiptera: Reduviidae) under laboratory conditions. Results suggested that P. fluorescens reduced the food consumption index, relative growth rate, approximate digestibility, the efficiency of conversion of ingested food, and the efficiency of conversion of digested food of S. litura third instar larvae compared to prey infected with M. anisopliae and SpltNPV. Both SpltNPV and M. anisopliae caused similar mortality of S. litura life stages after 96 h of observation. To observe the effect of an infected prey diet on predator behavior, infected S. litura larvae were offered to the third, fourth, and fifth instar nymphs of R. kumarii, and their prey handling time, predation rate (number/day/predator), developmental period, and the survival rate was recorded. When the life stages of R. kumarii were offered entomopathogen-infected S. litura larvae, their predation rate was comparable to or higher than the untreated control. The juvenile predator, after feeding on P. fluorescens-infected S. litura larvae, had a significantly longer developmental period (2–4 days) compared to those fed on larvae infected with other microbial control agents. However, feeding on P. fluorescens alone did not affect the predator nymphal survival rate or the adult sex ratio. Although three entomopathogens had some degree of effect on the biological parameters of R. kumarii, the outcome of this study suggests that integration of reduviids with the tested entomopathogens are a compatible and potentially effective strategy for the management of S. litura populations. However promising, this combined strategy needs to be tested under field conditions to confirm the laboratory findings.

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“…In practical applications, both the effectiveness and economic factors should be considered. For example, the assassin bugs Pristhesancus plagipennis and Trichogramma chilonis can be used for the biological control of bollworms, but compared with the use of Bt cotton and pesticides, the use of these assassin bugs is still uncommon because of the greater costs associated with their release (Sahayaraj et al, 2012;Khan, 2019).…”

Section: Development Of Integrated Pest Management For Ratooning Annumentioning

confidence: 99%

Ratooning Annual Cotton (Gossypium spp.) for Perennial Utilization of Heterosis

Zhang

Zhou

et al. 2020

Front. Plant Sci.

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This paper reviews an important topic within the broader framework of the use of ratoon cotton for the development of a cost-saving and efficient method for the perennial production of hybrid cotton seeds. Cotton has a botanically indeterminate perennial growth habit and originated in the tropics. However, cotton has been domesticated as an annual crop in temperate areas worldwide. Ratoon cultivation has an important application value and is important for cotton production, breeding, and basic research. In particular, ratooned male-sterile lines have four advantages: an established root system, an indeterminate flowering habit, ratooning ability, and perennial maintenance of sterility in the absence of a matched maintainer. These advantages can help reduce the costs of producing F1 hybrid cotton seeds and can help breed high-yielding hybrid combinations because ratooning is a type of asexual reproduction that allows genotypes to remain unchanged. However, ratooning of cotton is highly complex and leads to problems, such as the accumulation of pests and diseases, decreased boll size, stand loss during severe winters, and harmful regrowth during mild winters, which need to be resolved. In summary, ratoon cotton has advantages and disadvantages for the production of hybrid cotton seeds, and future prospects of ratooning annual cotton for the perennial utilization of heterosis are promising if the mechanization of seed production can be widely applied in practice.

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Stage preference and functional response of Rhynocoris longifrons (Stål) (Hemiptera: Reduviidae) on three hemipteran cotton pests

Abstract: In this work, the stage preference and functional response of the indigenous reduviid bug

Cited by 16 publications

References 20 publications

Mass rearing and augmentative biological control evaluation of Rhynocoris fuscipes (Hemiptera: Reduviidae) against multiple pests of cotton

Mass rearing and augmentative biological control evaluation of Rhynocoris fuscipes (Hemiptera: Reduviidae) against multiple pests of cotton

Lethal and Sublethal Effects of Three Microbial Biocontrol Agents on Spodoptera litura and Its Natural Predator Rhynocoris kumarii

Ratooning Annual Cotton (Gossypium spp.) for Perennial Utilization of Heterosis

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