Activity enhancement of<i>Zygogramma bicolorata</i>, a biocontrol agent of<i>Parthenium hysterophorus</i>, by temperature regulated diapause aversion

Sushilkumar,; Rây, Prafulla Chandra

doi:10.1080/09583157.2010.484855

Cited by 8 publications

(5 citation statements)

References 8 publications

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“…In a population from Jabalpur, India, 64% of beetles entered diapause at 26 • C and photoperiod was not important. Storage of females at 10 • C for 6 mo did not lower their fecundity [39].…”

Section: Zygogramma Bicolorata Pallistermentioning

confidence: 78%

Adult Diapause in Coleoptera

Hodek

2012

Psyche: A Journal of Entomology

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Recent studies dealing with adult (reproductive) diapause in the Coleoptera are reviewed, as a kind of supplement to the classic compendia. In the first two sections, the general characteristics of adult diapause are described and principal terms explained. Original articles dealing with 19 species from nine coleopteran families (Coccinellidae, Chrysomelidae, Bruchidae, Curculionidae, Carabidae, Silphidae, Scolytidae, Scarabaeidae, and Endomychidae) are reviewed. Finally attempts are made at generalisations from the papers reviewed, and hypotheses on diapause evolution are inferred. A polyphenic character of diapause is a prominent feature inC. septempunctataandL. decemlineata, but has been found also in other Coleoptera and in insects generally and often generates voltinism heterogeneity within populations.

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Section: Zygogramma Bicolorata Pallistermentioning

confidence: 78%

Adult Diapause in Coleoptera

Hodek

2012

Psyche: A Journal of Entomology

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“…Notwithstanding the significant increase in mean generation and doubling times with decreasing light durations compared with that of long-day conditions, diapause was not evident as there was no indication of a prolonged non-reproductive phase or arrest in the moulting of larval instars. Photoperiods could possibly affect diapause initiation but perhaps do not control diapause development and termination, as beetles undergoing diapause stay inside the soil in extreme dark conditions (Sushilkumar and Ray, 2010). The continuous dark condition, in the present study, despite giving the poorest results in terms of the demographic attributes, still supported the immature survival and adult reproduction of the beetles.…”

Section: Discussionmentioning

confidence: 89%

“…In addition, little is known on abiotic influences on its demographic parameters. Zygogramma bicolorata often undergoes diapause, sometimes even in the presence of favourable abiotic and biotic conditions (Jayanth and Bali, 1993b;Sushilkumar and Ray, 2010). The present study has thus been designed to identify the effect of food and abiotic (temperature, photoperiod and wavelength of light) conditions on birth rate-based demographic attributes of Z. bicolorata.…”

Section: Introductionmentioning

confidence: 99%

Demographic attributes of the parthenium beetle Zygogramma bicolorata (Coleoptera: Chrysomelidae) under different variables

Omkar

Rastogi

Pervez

2013

Int. J. Trop. Insect Sci.

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The demographic attributes of the parthenium beetle Zygogramma bicolorata Pallister were studied using Parthenium hysterophorus L. as food under different abiotic and biotic variables. Intrinsic and finite rates of increase were highest with the shortest mean generation and doubling times when Z. bicolorata was fed on inflorescences followed by the leaves and stems of P. hysterophorus. Temperature significantly affected the demographic parameters. The net reproductive rate was highest at 27 8C and lowest at 35 8C. Different photoperiodic exposures altered the demographic attributes of the beetles with long-day exposure (14L:10D) resulting in optimal values compared with other photoperiodic exposures. Continuous darkness (0L:24D) and continuous light (24L:0D) suboptimally affected the demographic attributes of the beetles. In response to the light of different wavelengths, the net reproductive rate, and intrinsic and finite rates of increase were significantly higher when the beetles were reared under a broad spectrum of white light followed by those under , 570 nm (yellow), , 475 nm (blue) and , 650 nm (red). Information gained in this study may be helpful in the mass multiplication of Z. bicolorata, and thereby strengthening the biocontrol of parthenium weed.

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“…Temperature is known to have a determinant role in the beetle’s diapause behaviour, with a high percentage of diapause induced in adults at low temperature (Gupta et al 2010; Hasan et al 2018). According to Sushilkumar and Ray (2010), diapause in Z. bicolorata reduces the insect’s effectiveness as a biological control agent of Parthenium because the plant typically finishes flowering and producing seeds by the time Z. bicolorata builds its population after diapause.…”

Section: Diapause Behaviourmentioning

confidence: 99%

Zygogramma bicolorata (Coleoptera: Chrysomelidae): an exotic biocontrol agent of the noxious weed, Parthenium hysterophorus (Asteraceae)

Afaq,

Kumar,

Siddiqui

et al. 2024

Can Entomol

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Parthenium hysterophorus Linnaeus (Asteraceae), commonly known as “congress grass,” is among the 10 worst weeds of India and is considered one of the world’s 100 most harmful invasive species. This species has been introduced accidentally into several countries, including India, and is a major agricultural and rangeland weed in more than 45 countries. It affects crop production, suppressing biodiversity, crop yields, the health of farm animals and human beings, and local and regional economies. Biological control has been found to be a cost-effective management strategy to control the weed, with the leaf beetle, Zygogramma bicolorata Pallister (Coleoptera: Chrysomelidae), considered an effective and safe biocontrol agent. Several studies have investigated the beetle’s biology, reproduction, and other life attributes. This review compiles the existing information about Z. bicolorata biology, growth, development, reproduction, food, and host specificity, and the effects of abiotic and biotic stressors on the insect’s life attributes. We anticipate that this review will helpful for improving strategies for this bioagent’s swift mass rearing and for developing classical biological control design for Parthenium weed.

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Activity enhancement ofZygogramma bicolorata, a biocontrol agent ofParthenium hysterophorus, by temperature regulated diapause aversion

Cited by 8 publications

References 8 publications

Adult Diapause in Coleoptera

Adult Diapause in Coleoptera

Demographic attributes of the parthenium beetle Zygogramma bicolorata (Coleoptera: Chrysomelidae) under different variables

Zygogramma bicolorata (Coleoptera: Chrysomelidae): an exotic biocontrol agent of the noxious weed, Parthenium hysterophorus (Asteraceae)

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