Field evaluation of two systemic neonicotinoid insecticides against pink hibiscus mealybug (Maconellicoccus hirsutus (Green)) on mulberry trees

Castle, Steven J.; Prabhaker, Nilima

doi:10.1007/s10340-011-0361-6

Cited by 12 publications

(4 citation statements)

References 10 publications

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“…The highest effect of Imidacloprid and Thiamethoxam had been recorded after 3-4 weeks of treatment. Also, previous results reported that the highest effects of neonicotinoid-based insecticides on mealybugs were recorded after 3 weeks (Willmott, 2012) and 4 weeks of treatment (Castle and Prabhaker, 2011). Despite this, in these studies, the treatments took 3-4 weeks before the highest mortality was observed, which suggest that factors such as water solubility and plant growth rate may affect translocation, thus…”

Section: Discussionmentioning

confidence: 78%

“…According to Willmott (2012), Thiamethoxam, a neonicotinoid-based insecticide, provided the highest P. citri mortality. Also, Castle and Prabhaker (2011) reported that there was a significant difference between water control and both Thiamethoxam and Imidacloprid treatments against pink hibiscus mealybug, Maconellicoccus hirstus (Green). Moreover, the same authors reported no significant differences between Thiamethoxam and Imidacloprid.…”

Section: Discussionmentioning

confidence: 99%

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Field Evaluation of Certain Insecticides Against Some Insect Pests Infesting Orange Trees

Ghanim

Elgohary

2015

Journal of Plant Protection and Pathology

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The present study aimed to evaluate the efficacy of Thiamethoxam, Imidacloprid, Spirotetramat, Sulfoxaflor, Buprofezin, Dimethoate, Phosmet and Mineral oil against Phyllocnistis citrella Stainton, Planococcus citri (Risso), Lepidosaphes beckii (Newman) and Ceroplastes floridensis Comstock infesting orange trees (Citrus sinensis L. (Rutacea)) under field conditions. The experiments were conducted in the Experimental Farm, Faculty of Agriculture, Mansoura University, Dakahlia Governorate, Egypt. The obtained results showed that the highest effective treatment on P. citrella was that of Thiamethoxam (the mean reduction percentages was 82.9%) followed by Imidacloprid (78.6%), Dimethoate (76.6%) and Sulfoxaflor (76.2%). Dimethoate ranked the highest treatment against P. citri followed by Imidacloprid and Thiamethoxam, where their general mean reductions reached 89.9, 82.9 and 82.3%, respectively. With respect to L. beckii, Dimethoate ranked the highest treatment followed by Phosmet which recorded general mean reductions of 90.8 and 90.7%, respectively. Also, Dimethoate was the highest insecticide against C. floridensis (the general mean reduction percentages was 90.2%) followed by Thiamethoxam (86.9%) and Imidacloprid (86.1%).

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Section: Discussionmentioning

confidence: 78%

Section: Discussionmentioning

confidence: 99%

Field Evaluation of Certain Insecticides Against Some Insect Pests Infesting Orange Trees

Ghanim

Elgohary

2015

Journal of Plant Protection and Pathology

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“…The efficacy of a broad selection of insecticides including carbamates [41,42], organophosphates [43,44,45], neonicotinoids [41,42,44,46], pyrethroids [41,42,43], and insect growth regulators [45,47] has been evaluated on pink hibiscus mealybug in the field and laboratory bioassays. However, there is no material registered for pink hibiscus mealybug suppression on dates in California, and the main objective of this study was to identify the best chemical for that purpose.…”

Section: Discussionmentioning

confidence: 99%

Lethal and Sub-Lethal Effects of Insecticides on the Pink Hibiscus Mealybug, Maconellicoccus hirsutus (Hemiptera: Pseudococcidae)

Ganjisaffar

Andreason

Perring

2019

Insects

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The pink hibiscus mealybug, Maconellicoccus hirsutus (Green) (Hemiptera: Pseudococcidae) is a pest of many plants, and a new problem on dates in California. The effects of seven insecticides and water on different life stages of this mealybug were studied to identify the best material for control. Water did not have any significant effect on mealybugs, but the insecticide treatments significantly affected all life stages tested. The egg hatch rate ranged from 28.5% to 17.2% for spirotetramat, bifenthrin, flupyradifurone, fenpropathrin, and buprofezin treatments, and was lower for sulfoxaflor (2.8%) and acetamiprid (0.1%). Despite high survival of neonate crawlers in the non-treated control and water treatments, 53.1% and 34.6% survived in the spirotetramat and buprofezin treatments, respectively; survival was zero in the other treatments. Spirotetramat and buprofezin caused very low mortality of nymphs in the first day post-treatment, but mortality significantly increased over time and reached 42.8% and 50.6% by day 6, respectively. The other treatments were highly toxic to the nymphs (79.4–99.4% on day 6). Insecticides also had a significant effect on the feeding ability of nymphs. By day 6 after treatment, 73.9% to 100% of nymphs treated with different insecticides stopped feeding although they were still alive. Insecticides showed no effect on the mortality of adult females, but the percentages of ovipositing females were significantly reduced (51.1% to 10.6%) in all insecticide treatments, except buprofezin, which was not statistically different from water and the non-treated control. In the process of our studies, we identified abnormalities in the appearance of eggs from females treated with various insecticides, and these aberrant eggs are described.

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“…Some neonicotinoid and pyrethroid insecticides (e.g. imidacloprid, thiamethoxam, bifenthrin) as well as their mixture have provided encouraging results regarding the control of the pest (Castle and Prabhaker, 2011;Fatima et al, 2016). However, the use of some neonicotinoids for outdoor use in EU has been banned.…”

Section: Additional Potential Risk Reduction Optionsmentioning

confidence: 99%

Pest categorisation of Maconellicoccus hirsutus

Bragard¹,

Baptista²,

Chatzivassiliou³

et al. 2022

EFS2

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The EFSA Panel on Plant Health performed a pest categorisation of Maconellicoccus hirsutus (Hemiptera: Pseudococcidae), the pink hibiscus mealybug, for the EU. M. hirsutus is native to Southern Asia and has established in many countries in tropical and subtropical regions throughout the world. Within the EU, the pest has been reported from Cyprus and Greece (Rhodes). M. hirsutus is not listed in Annex II of Commission Implementing Regulation (EU) 2019/2072. It is highly polyphagous, feeding on plants assigned to 229 genera in 78 plant families, and shows some preference for hosts in the families Malvaceae, Fabaceae and Moraceae. Economically important crops in the EU such as cotton (Gossypium spp.), citrus (Citrus spp.), ornamentals (Hibiscus spp.), grapes (Vitis vinifera), soybean (Glycinae max), avocado (Persea americana) and mulberry trees (Morus alba) may be significantly affected by M. hirsutus. The lower and upper developmental temperature threshold of M. hirsutus on Hibiscus rosa‐sinensis are 14.5 and 35.0°C, respectively, with optimal female development estimated to be at 29.0°C. There are about 10 generations a year in the subtropics but as many as 15 may occur under optimal conditions. Plants for planting, fruits, vegetables and cut flowers provide potential pathways for entry into the EU. Climatic conditions in EU member states around the Mediterranean Sea and host plant availability in those areas are conducive for establishment. The introduction of M. hirsutus is expected to have an economic impact in the EU through damage to various ornamental plants, as already observed in Cyprus and Greece, and reduction in yield and quality of many significant crops. Phytosanitary measures are available to reduce the likelihood of entry and further spread. Some uncertainties include the area of establishment, whether it could become a greenhouse pest, impact, and the influence of natural enemies. M. hirsutus meets the criteria that are within the remit of EFSA to assess for it to be regarded as a potential Union quarantine pest.

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Field evaluation of two systemic neonicotinoid insecticides against pink hibiscus mealybug (Maconellicoccus hirsutus (Green)) on mulberry trees

Cited by 12 publications

References 10 publications

Field Evaluation of Certain Insecticides Against Some Insect Pests Infesting Orange Trees

Field Evaluation of Certain Insecticides Against Some Insect Pests Infesting Orange Trees

Lethal and Sub-Lethal Effects of Insecticides on the Pink Hibiscus Mealybug, Maconellicoccus hirsutus (Hemiptera: Pseudococcidae)

Pest categorisation of Maconellicoccus hirsutus

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