Potential of wax degrading bacteria for management of the citrus mealybug, Planococcus citri

Gupta, Rakesh Kumar; Kour, Ramandeep; Gani, Mudasir; Guroo, Mushtaq Ahmad; Bali, Kamlesh

doi:10.1007/s10526-021-10120-8

Cited by 9 publications

(6 citation statements)

References 23 publications

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“…Similarly, lipases can hydrolyze the lipoproteins, waxes and fats present in the insect integuments and compromise cuticle protection in insect pests and consequently expose the cuticular chitin and proteins to further degradation by chitinase and proteases, which causes insect mortality by desiccation due to the removal of the waterproof wax layer and exposure of internal organs to external aggressions [26]. For instance, lipases from B. subtilis strain Ehrenberg hydrolyzed the wax layer in the cuticle of Planococcus citri (Hemiptera: Pseudococcidae), causing lethal effect and significantly reducing female longevity, fecundity, and adult formation in the surviving citrus mealybugs [146]. Lipase activity from B. subtilis, along with other hydrolytic enzymes, was reported to degrade the wax and other structural polymers of Maconellicoccus hirsutus (Hemiptera: Pseudococcidae), which caused pink mealybug mortality and substantially reduced the ecological fitness of surviving insects by lowering the longevity, fecundity, and body weight, and reducing the wax, sugars, and proteins in the secreted honeydew [147].…”

Section: The Role Of Lipases From Bacillus Sp In Biological Controlmentioning

confidence: 99%

The Prospect of Hydrolytic Enzymes from Bacillus Species in the Biological Control of Pests and Diseases in Forest and Fruit Tree Production

Ajuna,

Lim,

Moon

et al. 2023

IJMS

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Plant diseases and insect pest damage cause tremendous losses in forestry and fruit tree production. Even though chemical pesticides have been effective in the control of plant diseases and insect pests for several decades, they are increasingly becoming undesirable due to their toxic residues that affect human life, animals, and the environment, as well as the growing challenge of pesticide resistance. In this study, we review the potential of hydrolytic enzymes from Bacillus species such as chitinases, β-1,3-glucanases, proteases, lipases, amylases, and cellulases in the biological control of phytopathogens and insect pests, which could be a more sustainable alternative to chemical pesticides. This study highlights the application potential of the hydrolytic enzymes from different Bacillus sp. as effective biocontrol alternatives against phytopathogens/insect pests through the degradation of cell wall/insect cuticles, which are mainly composed of structural polysaccharides like chitins, β-glucans, glycoproteins, and lipids. This study demonstrates the prospects for applying hydrolytic enzymes from Bacillus sp. as effective biopesticides in forest and fruit tree production, their mode of biocidal activity and dual antimicrobial/insecticidal potential, which indicates a great prospect for the simultaneous biocontrol of pests/diseases. Further research should focus on optimizing the production of hydrolytic enzymes, and the antimicrobial/insecticidal synergism of different Bacillus sp. which could facilitate the simultaneous biocontrol of pests and diseases in forest and fruit tree production.

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Section: The Role Of Lipases From Bacillus Sp In Biological Controlmentioning

confidence: 99%

The Prospect of Hydrolytic Enzymes from Bacillus Species in the Biological Control of Pests and Diseases in Forest and Fruit Tree Production

Ajuna,

Lim,

Moon

et al. 2023

IJMS

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“…CMB is polyphagous and most destructive pest of citrus orchards and nurseries. It is distributed in different parts of the world such as in Egypt [120], Florida [121], California [122], Portugal [123], Turkey [124], South Africa [125], USA [126], South pacific region [127], Australia [128,129], India [130], Mediterranean region [131,132], America [122,133], and Pakistan [134].…”

Section: Distributionmentioning

confidence: 99%

Ecology, Biology, Damage, and Management of Sucking and Chewing Insect Pests of Citrus

Afzal¹,

Banazeer²,

Serrão³

et al. 2023

Citrus Research - Horticultural and Human Health Aspects

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Citrus are important commodities for human and animal nutrition but these crops are attacked by a plethora of dangerous agents, including viruses, bacteria, fungi, and invertebrates that decrease the yield significantly. Within invertebrates, insects are the more prevalent citrus pests causing plant damage or act as diseases vector. In this chapter, we focused in the insect pests with worldwide distribution in citrus orchards, including sap sucking Asian citrus psyllid Diaphorina citri, citrus mealybug Planococcus citri, citrus whitefly Dialeurodes citri, thrips representatives such as Scirtothrips citri and Pezothrips kellyanus, and chewing citrus leafminer Phyllocnistis citrella and lemon butterfly Papilio demoleus. These pests are distributed across various regions of different continents such as in Asia-pacific, Americas, Africa, and Oceana. We presented detailed data from these pests’ biology, ecology, damage, and methods for control. The pest incidence and biology is affected by various biotic and abiotic factors thus providing the opportunity to use these factors as method of intervention to disturb pest life cycle. In this context, several IPM techniques such as cultural, physical, biological, and chemical methods were elaborated, which could help to reduce the pest status below damaging levels.

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“…It adversely in uences fruit yield both quantitatively and qualitatively due to its infestation by nymphs and female bugs on roots, tender leaves, twigs, in orescence and fruits coupled with excretion of honeydew upon which sooty mold develops subsequently (Bhagat 2004, Ibrahim et al 2021). The waxy coating of adult mealy bugs and the nymphal instars and their tendency to aggregate and settle in cracks and crevices due to their cryptic nature (Lo and Walker 2011;Gupta et al 2021;Subramanian et al 2021) makes them hard rather unresponsive to be controlled by insecticides (Mani et al 2016). Additionally, because of anthropogenic changes in the agro-ecosystem such as agricultural intensi cation and climate change, it has assumed serious proportions in recent years.…”

Section: Introductionmentioning

confidence: 99%

“…The mango mealy bug, Drosicha mangiferae (Green) is a severe and destructive pest of mango, Mangifera indica and Indian devil, Alstonia scholaris (Rao et al 2006; Arora and Gupta et al 2021) on account of its wider distribution, quick spread and polyphagous status (Gupta et al 2021). It adversely in uences fruit yield both quantitatively and qualitatively due to its infestation by nymphs and female bugs on roots, tender leaves, twigs, in orescence and fruits coupled with excretion of honeydew upon which sooty mold develops subsequently (Bhagat 2004, Ibrahim et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Management of mango mealy bug (Drosicha mangiferae) through innovative glue traps under field conditions

Kour

Bandral

Gupta

et al. 2022

Preprint

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Mango mealy bug, Drosicha mangiferae is a cryptic, destructive and polyphagous pest found throughout India and its neighboring countries. We devised, tested and validated the different modules/ techniques as alternatives to synthetic insecticides for managing D. mangiferae under field conditions. The physical barriers, namely glue traps, were found to be highly effective followed by the bristle rings to restrict the bug mobility towards the plant canopy on Mangifera indica and Alistonia scholaris. Among various modules, the holistic module (96.71 to 99.04 percent) proved to be highly effective in significantly suppressing the population of mealy bugs followed by the physical barrier module (82.66 to 89.10 percent). A significant reduction in the nuisance level of this pest in the urban ecosystem was recorded and most of the respondents scored significantly fewer Participants Risk Perception of the pest in terms of pest being plentiful, looking scary, crawling and outdoor reproduction. In contrast, for flying and indoor reproduction it remained non-significant. Similarly, in terms of tolerance level, the respondents contended with the magnitude of control as they recorded a significantly lower score on the three essential questions. The physical modules based upon glue traps are recommended for the eco-friendly management of D. mangiferae on different trees and this technique has the potential to be adopted by resource-poor farmers in India and other countries.

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Potential of wax degrading bacteria for management of the citrus mealybug, Planococcus citri

Cited by 9 publications

References 23 publications

The Prospect of Hydrolytic Enzymes from Bacillus Species in the Biological Control of Pests and Diseases in Forest and Fruit Tree Production

The Prospect of Hydrolytic Enzymes from Bacillus Species in the Biological Control of Pests and Diseases in Forest and Fruit Tree Production

Ecology, Biology, Damage, and Management of Sucking and Chewing Insect Pests of Citrus

Management of mango mealy bug (Drosicha mangiferae) through innovative glue traps under field conditions

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