A temperature-based phenology model for predicting development, survival and population growth potential of the mealybug, Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae)

Fand, Babasaheb B.; Tonnang, Henri E. Z.; Kumar, Mahesh; Kamble, Ankush L.; Bal, Santanu Kumar

doi:10.1016/j.cropro.2013.10.020

Cited by 54 publications

(48 citation statements)

References 22 publications

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“…Survival results similar to those found in our study were reported by Francis et al (2012) and Fand et al (2014). It was observed that even in the cocoon the males are susceptible, since mortality occurred in the passage from the third to the fourth instar.…”

Section: Resultssupporting

confidence: 82%

“…When kept on grapevine, males have four instars, whereas females have three instars (Table 1), corroborating other studies of the biology of mealybugs in which males and females have four and three instars, respectively (Chong et al, 2008;Morandi Filho et al, 2008;Santa-Cecilia et al, 2009;Vennila et al, 2010;Bertin et al, 2013;Fand et al, 2014). There was not a significant difference, in days, in the duration of the first two instars for males and females.…”

Section: Resultssupporting

confidence: 79%

“…The viability presented by females and males during the first two instars (Table 2) showed that in this period the insects are more fragile, corroborating other studies, where high mortality of pseudococcids is observed during the first and second instars (Chong et al, 2008;Morandi Filho et al, 2008;Vennila et al, 2010;Fand et al, 2014).…”

Section: Resultssupporting

confidence: 78%

“…This result differs from those found by Correa et al (2005), in which mortality did not occur in the change of male instars. Comparing our results for longevity of males to those reported in the scientific literature, there is evidence that the presence of cocoons does not seem to be a factor that ensures survival, whether in the third or fourth instar, since the presence of a cocoon also did not impede the occurrence of mortality in the studies conducted by Morandi Filho et al (2008), Francis et al (2012) andFand et al (2014) In the adult phase, the longevity of females was much greater than that of males, nearly 30 times greater (Table 1). Maximum durations of 99 and 4 days of longevity were registered for females and males, respectively, in this phase.…”

Section: Resultssupporting

confidence: 63%

“…Maximum durations of 99 and 4 days of longevity were registered for females and males, respectively, in this phase. For females, the result found in this study is much longer than that reported by Morandi Filho et al (2008), Vennila et al (2010), Francis et al (2012), Bertin et al (2013) andFand et al (2014). Possibly this result occurred due to the absence of the reproductive period of P. citri.…”

Section: Resultscontrasting

confidence: 55%

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Development and longevity of Citrus mealybug Planococcus citri (Risso, 1813) (Insecta: Homoptera: Pseudococcidae) associated with grapevine

Silva¹,

Oliveira²,

Silva³

et al. 2015

Afr. J. Agric. Res.

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The Citrus mealybug Planococcus citri has a wide geographical distribution and has been described as a pest of economic importance in several crops. The present work determined the developmental and biological aspects of the Citrus mealybug in order to obtain information that may support the integrated pest management (IPM) of grapevine (Vitis vinifera L.) cv. Syrah in the Lower Basin of the São Francisco Valley region. The research was conducted at the Laboratory of Entomology of Embrapa Semiarid, Petrolina-PE, on leaves of grapevine kept in a controlled environment (25 ± 1°C, 60 ± 10% R. H. and a photoperiod of 12L:12D). The first two instars had higher mortality, indicating high susceptibility in these nymphal periods. The overall nymphal period of females and males is similar at 22.52 ± 0.46 and 23.5 ± 0.29 days, respectively, with viability of 39%. The adult longevity of females is nearly 30 times greater than that of males, indicating that females of P. citri are mainly responsible for damage and injury to grapevine. The sex ratio was 0.64, indicating that females make up the majority of the adult population of P. citri. We conclude that the species in question completes its lifecycle on leaves of grapevine and reaches the adult phase in a short time interval.

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Section: Resultssupporting

confidence: 82%

Section: Resultssupporting

confidence: 79%

Section: Resultssupporting

confidence: 78%

Section: Resultssupporting

confidence: 63%

Section: Resultscontrasting

confidence: 55%

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Development and longevity of Citrus mealybug Planococcus citri (Risso, 1813) (Insecta: Homoptera: Pseudococcidae) associated with grapevine

Silva¹,

Oliveira²,

Silva³

et al. 2015

Afr. J. Agric. Res.

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Effect of temperature on the biological parameters of the cabbage aphid Brevicoryne brassicae

Soh

Kekeunou

Nanga

et al. 2018

Ecology and Evolution

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The cabbage aphid, Brevicoryne brassicae, is a pest of many plants of the Brassicaceae family including cabbage, Brassica oleracea Linnaeus, 1753. We investigated the effect of temperature on the biological parameters of B. brassicae using different temperature‐based models incorporated in the Insect Life Cycle Modelling (ILCYM) software. Nymphs of first stage were individually placed in the incubators successively set at 10°C, 15°C, 20°C, 25°C, 30°C, and 35°C; 75 ± 5% RH; and L12: D12‐hr photoperiods. We found that first nymph reached the adult stage after 18.45 ± 0.04 days (10°C), 10.37 ± 0.26 days (15°C), 6.42 ± 0.07 days (20°C), 5.076 ± 0.09 days (25°C), and 5.05 ± 0.10 days (30°C), and failed at 35°C. The lower lethal temperatures for B. brassicae were 1.64°C, 1.57°C, 1.56°C, and 1.62°C with a thermal constant for development of 0.88, 0.87, and 0.08, 0.79 degree/day for nymphs I, II, III, and IV, respectively. The temperatures 10, 30, and 35°C were more lethal than 15, 20, and 25°C. Longevity was highest at 10°C (35.07 ± 1.38 days). Fertility was nil at 30°C and highest at 20°C (46.36 ± 1.73 nymphs/female). The stochastic simulation of the models obtained from the precedent biological parameters revealed that the life table parameters of B. brassicae were affected by the temperature. The net reproduction rate was highest at 20°C and lowest at 30°C. The average generation time decreased from 36.85 ± 1.5 days (15°C) to 6.86 ± 0.1 days (30°C); the intrinsic rate of increase and the finite rate of increase were highest at 25°C. In general, the life cycle data and mathematical functions obtained in this study clearly illustrate the effect of temperature on the biology of B. brassicae. This knowledge will contribute to predicting the changes that may occur in a population of B. Brassiace in response to temperature variation.

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Laboratory selection, cross‐resistance, and estimations of realized heritability of indoxacarb resistance in Phenacoccus solenopsis (Homoptera: Pseudococcidae)

Afzal

Shad

Ejaz

et al. 2019

Pest Management Science

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BACKGROUND Cotton mealybug Phenacoccus solenopsis is a pest of cotton, vegetables, ornamentals, and medicinal plants. In many parts of the world P. solenopsis has been managed by integration of cultural, mechanical, biological and chemical methods, but in Pakistan the use of insecticide sprays has resulted in the development of resistance to some insecticides. In this study indoxacarb resistance was investigated by selecting a P. solenopsis population under laboratory conditions for many generations. The cross‐resistance potential of indoxacarb resistance with other chemistries and the realized heritability of indoxacarb resistance were also evaluated. RESULTS A field population of P. solenopsis selected with indoxacarb for 27 generations had a 25 623.17‐fold resistance level. The highly indoxacarb resistant population showed very high cross‐resistance to spinosad and very low cross‐resistance to bifenthrin and chlorpyrifos. The mean estimated h2 of resistance to indoxacarb was only 0.04. The number of generations predicted for the development of ten‐fold indoxacarb resistance at a constant h2 = 0.04 against selection intensities of 10% and 95% were 346 and 36 (slope = 3.18), 237 and 25 (slope = 2.18) and 128 and 13 (slope = 1.18). However, at a constant slope = 1.18 and selection intensities of 10% and 95%, the same increase in indoxacarb resistance occurred after 128 and 13 (h2 = 0.04), 103 and 11 (h2 = 0.05), and 86 and 9 (h2 = 0.06) generations. CONCLUSION This study revealed that P. solenopsis has a very high resistance to indoxacarb as a result of laboratory selection. Thus, resistance to this insecticide in the field may also occur. Indoxacarb resistance can be minimized by rotating it with bifenthrin and/or chlorpyrifos due to its very low cross‐resistance to these insecticides and by avoiding its rotation with Spinosad, which has very high cross‐resistance. © 2019 Society of Chemical Industry

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A temperature-based phenology model for predicting development, survival and population growth potential of the mealybug, Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae)

Cited by 54 publications

References 22 publications

Development and longevity of Citrus mealybug Planococcus citri (Risso, 1813) (Insecta: Homoptera: Pseudococcidae) associated with grapevine

Development and longevity of Citrus mealybug Planococcus citri (Risso, 1813) (Insecta: Homoptera: Pseudococcidae) associated with grapevine

Effect of temperature on the biological parameters of the cabbage aphid Brevicoryne brassicae

Laboratory selection, cross‐resistance, and estimations of realized heritability of indoxacarb resistance in Phenacoccus solenopsis (Homoptera: Pseudococcidae)

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