Laboratory evaluation of the suitability of vine mealybug, Planococcus ficus , as a host for Leptomastix dactylopii

Marras, P. M.; Cocco, Arturo; Muscas, Enrico; Lentini, Andrea

doi:10.1016/j.biocontrol.2016.01.007

Cited by 8 publications

(11 citation statements)

References 51 publications

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“…Mealybug colonies were started from females collected in a vineyard ( P. ficus ) and a lemon grove ( P. citri ) and reared on sprouted potatoes for 4 years under constant darkness at 26 ± 1 °C and 60–70% relative humidity in two separate climatic chambers to avoid cross‐contamination (Marras et al ., ). Both vine and citrus mealybugs were differentiated by a rapid amplification of polymorphic DNA‐polymerase chain reaction assay using specifically designed primers (Demontis et al ., ).…”

Section: Methodsmentioning

confidence: 97%

“…Genetic analyses have been able to reliably and rapidly discriminate species of mealybugs attacking grapes (Demontis et al ., ; Saccaggi et al ., ; Daane et al ., ; Malausa et al ., ; Pacheco da Silva et al ., ). The accurate identification of mealybug species has important implications for control strategies specifically targeted to the pest species, such as biological control (Franco et al ., ; Suma et al ., ; Marras et al ., ) and pheromone‐based control methods (Cocco et al ., ; Sharon et al ., ). Furthermore, citrus and vine mealybugs have different efficiencies with respect to vectoring viruses, thus affecting the spread of virus diseases differently in vineyards (Bertin et al ., ).…”

Section: Introductionmentioning

confidence: 99%

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Comparative development and reproduction ofPlanococcus ficusandPlanococcus citri(Hemiptera:Pseudococcidae) on grapevine under field conditions

Cocco

Mura

Muscas

et al. 2017

Agri and Forest Entomology

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1 Mealybugs are major pests in grape-growing areas worldwide, causing direct and indirect crop damage. The vine mealybug Planococcus ficus (Signoret) is a key pest in most of grape-producing countries, whereas the citrus mealybug Planococcus citri (Risso) is reported as being destructive in Brazilian and Spanish vineyards. 2 We examined the adaptation of the citrus mealybug to grapevine by investigating its development, reproduction and life-history parameters under Mediterranean field conditions in comparison with those of P. ficus. 3 Both mealybug species developed and reproduced successfully on grapevine. However, P. ficus showed a shorter development time, larger female body size, and higher fecundity, fertility and survival than P. citri. 4 The life-history parameters further highlighted the different growth potential of vine and citrus mealybug populations because P. ficus exhibited a net reproductive rate and an intrinsic rate of increase two-to four-fold higher than that of P. citri. Furthermore, the vine mealybug population doubled its number in approximately half time with respect to the citrus mealybug. 5 Overall, the results of the present study show a better development and reproductive performance and a higher population growth potential of P. ficus compared with P. citri, indicating a higher capacity of the vine mealybug to develop on grapevine in Mediterranean vineyards.

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Section: Methodsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Comparative development and reproduction ofPlanococcus ficusandPlanococcus citri(Hemiptera:Pseudococcidae) on grapevine under field conditions

Cocco

Mura

Muscas

et al. 2017

Agri and Forest Entomology

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“…In fact, mealybugs are mostly located under the bark and on roots and are protected from insecticides, especially those exhibiting contact toxicity. As a consequence, the effectiveness of conventional chemical control programs is often unsatisfactory, to the extent that a wide range of alternative strategies have been developed, such as mating disruption and biological control [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Multiple Effects of Nitrogen Fertilization on Grape Vegetative Growth, Berry Quality and Pest Development in Mediterranean Vineyards

et al. 2021

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Nitrogen is a key macronutrient for the quantitative and qualitative yield of grapes; in addition, it influences the development and reproduction of grape pests. The multiple effects of different nitrogen rates were investigated on the red berry cultivar ‘Carignano’ and the grape pest Planococcus ficus in a two-year field trial. Different amounts of ammonium nitrate were compared: 0, 80 and 160 Units ha−1 for mineral nitrogen. The amount of nitrogen fertilization supplied influenced the nitrogen status of vines and increased the pruning weight and leaf area, as well as the overall grape yield, by increasing the cluster weight. However, doubling the nitrogen rate did not generally increase the vegetative and productive parameters of grapevines. At harvest, nitrogen supply did not influence the anthocyanin content, tritatable acidity, and soluble solids, although the latter parameter showed a clear, yet not significant, decreasing trend. Planococcus ficus exhibited higher fecundity, survival and shorter development time on grapevines provided with nitrogen, whereas its fertility was unaffected by nitrogen fertilization. Ultimately, nitrogen had a direct and positive effect on grape yield and vine mealybug development, highlighting the importance of integrated cultural and pest control practices to promote grape production.

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“…The effectiveness of L. dactylopii against VMB could be manipulated in mass-rearing facilities. In fact, laboratory experiments demonstrated that L. dactylopii can successfully complete its development on VMB, showing a reproductive fitness comparable with that observed on P. citri, and a very low effective encapsulation rate (5%) (Marras et al 2016). Furthermore, the host preference for VMB can be increased by rearing the parasitoid on its target pest.…”

Section: Leptomastix Dactylopii Howard (Hymenoptera: Encyrtidae)mentioning

confidence: 94%

Sustainable management of the vine mealybug in organic vineyards

et al. 2020

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The vine mealybug (VMB), Planococcus ficus, is a major grapevine pest worldwide, whose chemical control is often unsatisfactory due to its cryptic behavior, insecticide resistance and high fecundity rate. Recently, increasing restrictions have been applied to insecticides used for managing VMB. This review discusses sustainable VMB management strategies in organic viticulture. Pheromone-mediated mating disruption has been proved to be effective in both organic wine and table-grape vineyards. Biocontrol projects carried out through the release of parasitoids and/or predators have often provided inconclusive results, ranging from effective reduction of mealybug infestation to a marginal impact of parasitoids on VMB density. The latter outcome is likely due to constraints affecting the parasitoid activity, such as the disrupting activity of mealybug-tending ants and broad-spectrum insecticides, or untimely release of parasitoids. Ant suppression should be associated with the release of beneficial organisms, as mealybug-tending ants can severely affect the parasitoid activity. Cultural and physical control and the employment of entomopathogens and natural products mitigate the buildup of VMB populations, but they are not widely applied. VMB control in organic viticulture requires the integration of different strategies, as application of single control tools as a stand-alone treatment may not be effective, especially for high pest infestation. Future research to determine the density action threshold below which sustainable methods are effective and calibrate efforts in relation with pest infestation is needed. A multi-disciplinary approach is required to define the most appropriate sustainable control protocols in different environmental conditions and promote a further spread of organic viticulture.

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Laboratory evaluation of the suitability of vine mealybug, Planococcus ficus , as a host for Leptomastix dactylopii

Cited by 8 publications

References 51 publications

Comparative development and reproduction ofPlanococcus ficusandPlanococcus citri(Hemiptera:Pseudococcidae) on grapevine under field conditions

Comparative development and reproduction ofPlanococcus ficusandPlanococcus citri(Hemiptera:Pseudococcidae) on grapevine under field conditions

Multiple Effects of Nitrogen Fertilization on Grape Vegetative Growth, Berry Quality and Pest Development in Mediterranean Vineyards

Sustainable management of the vine mealybug in organic vineyards

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