Reproductive Development of Lygus hesperus (Hemiptera: Miridae) Adults Under Constant and Variable Temperatures

Brent, Colin S.; Spurgeon, D. W.

doi:10.1093/jisesa/iez066

Cited by 3 publications

(1 citation statement)

References 20 publications

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“…Byrd and Butler reported that, under fluctuating temperatures, Sarcophaga haemorrhoidalis (Fallen) (Diptera: Sarcophagidae) had a maximal thermal preference of 30 • C [38]. Brent and Spurgeon [39] found non-significant developmental durations of Lygus Hesperus (Hemiptera: Miridae) observed at moderate and high fluctuating temperatures of 22 • C and 29 • C, respectively. Mironidis [40] observed that the longevity and fecundity of adult Helicoverpa armigera (Lepidoptera: Noctuidae) were decreased at variable temperatures ranging from 17.5 to 32.5 • C. One of the reasons for these various effects is that fluctuating temperatures may delay the development process at all stages, with survival and longevity gradually decreasing as temperatures decrease and increase [41].…”

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confidence: 99%

Analysis of the Influence of Changing and Fixed Temperatures on the Growth and Pteridine Content in the Head of Adults Sarcophaga crassipalpis (Diptera: Sarcophagidae)

Ngando

Zhang

et al. 2023

Animals

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Flesh flies (Diptera: Sarcophagidae) are regarded as significant in medical and veterinary entomology, and their development models can be utilized as considerable markers to ascertain the minimum postmortem interval (PMImin). In this research, we explored the growth cycle and larval body length of Sarcophaga crassipalpis Macquart 1839 (Diptera: Sarcophagidae) reared under variable temperatures ranging from 15.7 to 31.1 °C, with an average of 24.55 °C and relative humidity ranges from 31.4 to 82.8% and at six fixed temperatures of 15, 20, 25, 30, 32, and then 35 °C. Moreover, pteridine from the head was used to assess adult age grading. Our results allowed us to provide three development models: the isomorphen chart, the isomegalen chart, and the thermal summation models. The time taken for S. crassipalpis to complete its development from larviposition to adult emergence at constant temperatures of 15, 20, 25, 30, 32, and 35 °C was 1256.3 ± 124.2, 698.6 ± 15.1, 481.8 ± 35.7, 366.0 ± 13.5, and 295.8 ± 20.5 h, respectively, except 35 °C, where all pupae were unable to attain adulthood. They lasted 485.8 ± 5.4 h under variable temperatures. The minimum developmental limit (D0) temperature and the thermal summation constant (K) of S. crassipalpis were 9.31 ± 0.55 °C and 7290.0 ± 388.4 degree hours, respectively. The increase in pteridine content exhibited variations across different temperatures. There was quite a considerable distinction in the pteridine contents of male and female S. crassipalpis at 15 °C (p = 0.0075) and 25 °C (p = 0.0213). At 32 °C and variable temperatures, the pteridine content between female and male S. crassipalpis was not statistically divergent. However, temperature and gender remain the main factors influencing the pteridine content in the head of S. crassipalpis. We aim to provide detailed developmental data on S. crassipalpis that can be used as a valuable resource for future research and PMI estimation.

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Section: Introductionmentioning

confidence: 99%

Analysis of the Influence of Changing and Fixed Temperatures on the Growth and Pteridine Content in the Head of Adults Sarcophaga crassipalpis (Diptera: Sarcophagidae)

Ngando

Zhang

et al. 2023

Animals

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Host plant and habitat preferences of Lygus bugs: consequences for trap cropping applications

Holopainen,

Hokkanen

2024

Arthropod-Plant Interactions

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Lygus bugs (Hemiptera: Miridae) can damage economically important crop plants by feeding on their active growing points, such as the apical meristem and buds, and reproductive organs, such as flower buds, flowers, seeds, and fruits. Plant injury is a combination of mechanical damage by the stylet and the effects of saliva, which contains enzymes that break the plant cells. On some occasions, oligophagous Lygus species can act as biocontrol organisms when predating on eggs and larvae of pest insects. This review summarises studies where trap crops have been used to control Lygus bug populations on various crops and to reduce damage to crops. We also focus on the factors that affect the host plant and habitat selection of the highly polyphagous Lygus bugs and discuss the reasons why a less favourable host plant in the laboratory might become attacked by Lygus bugs in the field. An analysis of rapidly developed worldwide Lygus damage problems in conifer nurseries in the late 1970s and early 1980s is presented as an example of how rapidly Lygus bugs can adapt to changes in environmental conditions and new types of crops. We suggest that the rate of crop irrigation and the efficiency of weed control could be factors augmenting Lygus populations and the severity of Lygus damage. These factors should also be considered in the planning of trap crop strategies for Lygus spp.

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Diapause Termination and Postdiapause in Lygus hesperus (Heteroptera: Miridae)

Brent

2021

Journal of Insect Science

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The western tarnished plant bug, Lygus hesperus Knight, overwinters as a diapausing adult in response to short day lengths. Once environmental conditions are favorable, the bugs revert to an active reproductive state. To determine the impact on life-history traits of diverting resources toward diapause rather than oogenesis during early adulthood, diapausing and nondiapausing L. hesperus females were reared from the same cohorts. Body mass, ovarian maturation, ovipositional activity, and survivorship were monitored starting either at the time of release from diapause-inducing conditions or at adult eclosion for diapausers and nondiapausers, respectively. Females that had gone through 2 wk of diapause were larger and able to mobilize the resources necessary for oogenesis faster than nondiapausers, initiating oogenesis and ovipositing sooner and at a faster initial rate. However, lifetime egg production and average daily rates were similar for both groups. Postdiapausers lived longer than nondiapausers by an average of 19 d, which is five more than the 2-wk period when they were reproductively senescent. Overall, the results indicate that short-term diapause does not have a negative impact on life history. Furthermore, the extra endogenous resources stored during diapause may be able to enhance the alacrity with which the female can take advantage of improved environmental conditions and may prolong life by shielding the females against environmental stressors such as temperature extremes, oxidative agents, or food deficits.

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Reproductive Development of Lygus hesperus (Hemiptera: Miridae) Adults Under Constant and Variable Temperatures

Cited by 3 publications

References 20 publications

Analysis of the Influence of Changing and Fixed Temperatures on the Growth and Pteridine Content in the Head of Adults Sarcophaga crassipalpis (Diptera: Sarcophagidae)

Analysis of the Influence of Changing and Fixed Temperatures on the Growth and Pteridine Content in the Head of Adults Sarcophaga crassipalpis (Diptera: Sarcophagidae)

Host plant and habitat preferences of Lygus bugs: consequences for trap cropping applications

Diapause Termination and Postdiapause in Lygus hesperus (Heteroptera: Miridae)

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