Biology of<i>Paracoccus marginatus</i>Williams and Granara de Willink (Hemiptera: Pseudococcidae) on papaya, parthenium and brinjal plants

Seni, Atanu; Sahoo, A. K.

doi:10.5958/2348-7542.2015.00102.3

Cited by 4 publications

(6 citation statements)

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“…Papaya plants are the main hosts for P. marginatus. Compared to eggplant and parthenium (a shrub from the Asteraceae family), papaya provided the best quality of life for P. marginatus indicated with a higher fecundity than the other plants [10]. It is estimated that the nutritional content of papaya plants matched the nutritional needs of P. marginatus.…”

Section: Resultsmentioning

confidence: 99%

The attack intensity of Paracoccus marginatus Williams & Granara de Willink (Hemiptera: Pseudococcidae) on papaya

Pramayudi

Bakti

Tobing

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The mealybug, Paracoccus marginatus is one of the important insect pests in papaya (Carica papaya L.). The high potential for damage caused by this pest poses a threat to the production of papaya in Indonesia. The aim of this study was to evaluate the intensity of P. marginatus attack on papaya by observing variables such as plant varieties, planting seasons and cultivation methods. The area of observation plots was about 2.000 m2. The cultivation technique applied was monoculture with a spacing of 2.5 m x 2.5 m. Thirty plots of plants were collected from each plot of plants using diagonal sampling technique. The total number of leaves and the number of leaves attacked were recorded. Damage intensity was determined based on the category: no attack (score 0), mild 1-25% (score 1), moderate 26-50% (score 2), severe 51-75% (score 3), and very severe 76-100% (score 4). The attack intensity was higher in the dry season than rainy season. The results show that attack was higher in the dry season that rainy season. The intensity of the attack was also higher in Thai varieties both in the rainy and dry seasons. More intensive pest control shall be applied in the dry season and in the introduced varieties.

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Section: Resultsmentioning

confidence: 99%

The attack intensity of Paracoccus marginatus Williams & Granara de Willink (Hemiptera: Pseudococcidae) on papaya

Pramayudi

Bakti

Tobing

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…P. marginatus reproduces sexually and there are up to 11 generations per year in India (Seni and Sahoo, 2015). Eggs are laid in waxy ovisacs.…”

Section: Biology Of the Pestmentioning

confidence: 99%

“…Adult females are larviform and neotenic (they retain the immature external morphology even when sexually mature) (Figure 1B), whereas the adult males have a single pair of wings but are weak fliers. Population build‐up is weather dependent as there is a significant positive correlation with increasing temperature between 18°C and 30°C and significantly negative correlation with relative humidity and rainfall (Amarasekare et al., 2008a; Seni and Sahoo, 2015; Kondo and Watson, 2022). Studies of the life history of P. marginatus on several host plant species under laboratory conditions have been undertaken in the USA (Amarasekare et al., 2008b) and India (Seni and Sahoo, 2015).…”

Section: Pest Categorisationmentioning

confidence: 99%

“…Studies of the life history of P. marginatus on several host plant species under laboratory conditions have been undertaken in the USA (Amarasekare et al., 2008b) and India (Seni and Sahoo, 2015). Lifes‐history parameters, such as developmental time, survival of first‐ and second‐instar nymphs, sex ratio and fecundity, were found to vary with host species (Amarasekare et al., 2008b; Seni and Sahoo, 2015).…”

Section: Pest Categorisationmentioning

confidence: 99%

“…Population build‐up is weather dependent as there is a significant positive correlation with increasing temperature between 18°C and 30°C and significantly negative correlation with relative humidity and rainfall (Amarasekare et al., 2008a; Seni and Sahoo, 2015; Kondo and Watson, 2022). Studies of the life history of P. marginatus on several host plant species under laboratory conditions have been undertaken in the USA (Amarasekare et al., 2008b) and India (Seni and Sahoo, 2015). Lifes‐history parameters, such as developmental time, survival of first‐ and second‐instar nymphs, sex ratio and fecundity, were found to vary with host species (Amarasekare et al., 2008b; Seni and Sahoo, 2015).…”

Section: Pest Categorisationmentioning

confidence: 99%

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Pest categorisation of Paracoccus marginatus

Bragard¹,

Baptista²,

Chatzivassiliou³

et al. 2023

EFS2

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The EFSA Panel on Plant Health performed a pest categorisation of Paracoccus marginatus (Hemiptera: Sternorrhyncha: Pseudococcidae), the papaya scale, for the EU. It is native to Central America and since the 1990s, it has spread rapidly in mainly tropical areas of the Caribbean, islands in the Indian and Pacific Oceans, Africa and southern Asia. Large populations were detected in northern Israel in 2016. It has not been reported within the EU. It is not listed in Annex II of Commission Implementing Regulation (EU) 2019/2072. It reproduces sexually and there are up to 11 generations per year in India. The estimated minimum, optimum and maximum temperature thresholds for the adult females are 13.9, 28.4 and 32.1°C, respectively. First-instar nymphs may move to neighbouring plants by crawling, or be passively dispersed by wind, or hitchhiking on clothing, equipment or animals. It is highly polyphagous, feeding on plants in 172 genera and 54 families. It is an important pest of custard apple (Annona spp.), papaya (Carica papaya) and Hibiscus spp. It also feeds on a wide range of plants cultivated in the EU such as eggplant (Solanum melongena), avocado (Persea americana), citrus (Citrus spp.), cotton (Gossypium hirsutum), grapevine (Vitis vinifera), guava (Psidium guajava), mango (Mangifera indica), passionfruit (Passiflora edulis), pomegranate (Punica granatum), pepper (Capsicum annuum) and tomato (Solanum lycopersicum). Plants for planting, fruits, vegetables and cut flowers are the main potential pathways for entry of P. marginatus into the EU. Climatic conditions in the warmest areas of Cyprus, Greece, Italy and Spain, where host plants occur, would likely allow this species to successfully establish and spread. Reductions in yield and quality of some cultivated hosts including Annona spp., Hibiscus spp. and papaya are anticipated if establishment occurs. Phytosanitary measures are available to reduce the likelihood of entry and spread. P. marginatus meets the criteria that are within the remit of EFSA to assess for this species to be regarded as a potential Union quarantine pest.

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Phosphine and phosphine plus ethyl formate for controlling papaya mealybug (Hemiptera: Pseudococcidae) on succulents

Zou,

Li,

et al. 2024

Journal of Economic Entomology

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The papaya mealybug, Paracoccus marginatus (Hemiptera: Pseudococcidae), poses a serious threat to global trade and is classified as a quarantine pest in some countries. Phosphine (PH3) is considered an alternative to methyl bromide for postharvest control of P. marginatus. However, reports addressing the impact of PH3 treatment to control P. marginatus on succulent plants are lacking. This study aims to investigate the effects of PH3 fumigation alone and in combination with ethyl formate (EF) on insecticidal activity across all developmental stages of P. marginatus and its influence on the quality of plant products. Tolerance tests showed that among all developmental stages, the egg stage of P. marginatus is the most tolerant to PH3 treatment. A concentration of 1 g m−3 PH3 for 8 h exposure at 25 °C achieved a 99.9968% (Probit-9) mortality rate for the eggs. Additionally, we examined the synergistic effects of combining EF with PH3. Combined fumigation with 0.5 g m−3 PH3 and 2 g m−3 EF for 8 h at 25 °C did not adversely affect the lifespan and quality of three succulent plant species, achieving an effective dose of 0.99991. These findings suggest that PH3 fumigation, with or without EF, are effective treatments for postharvest control of P. marginatus in succulent plants.

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Biology ofParacoccus marginatusWilliams and Granara de Willink (Hemiptera: Pseudococcidae) on papaya, parthenium and brinjal plants

Cited by 4 publications

References 0 publications

The attack intensity of Paracoccus marginatus Williams & Granara de Willink (Hemiptera: Pseudococcidae) on papaya

The attack intensity of Paracoccus marginatus Williams & Granara de Willink (Hemiptera: Pseudococcidae) on papaya

Pest categorisation of Paracoccus marginatus

Phosphine and phosphine plus ethyl formate for controlling papaya mealybug (Hemiptera: Pseudococcidae) on succulents

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