New Pesticides for Potato Protection Against the Colorado Potato Beetle (Leptinotarsa Decemlineata Say.) and Late Blight (Phytophtora Infestans Mont. De Bary)

Zabel, A.; Rajkovic, S.; Manojlovič, B.; Stanković, S.; Veljkovic, I.

doi:10.17660/actahortic.2002.579.85

Cited by 6 publications

(6 citation statements)

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“…Large numbers of pesticides from different chemical classes have been used so far to manage CPB, such as insecticides from the class of chlorinated hydrocarbons, organophosphates, carbamates, pyrethroids, nereistoxins, insect growth regulators, neonicotinoids, as well as bacterial products, GMOs, products of plant origin (azadirachtin), etc. Over the last few decades, only a few insecticides in our country have been satisfactorily efficient [15,16,17,18].…”

Section: Management Of Colorado Potato Beetlementioning

confidence: 99%

Role of AChE in Colorado Potato Beetle (Leptinotarsa decemlineata Say) Resistance to Carbamates and Organophosphates

Kostić¹,

Stanković²,

Kuzevski³

2016

Insecticides Resistance

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Colorado potato beetle is one of the most important pests of potatoes and one of the most difficult insects to control. Over the years, none of the control techniques developed against this pest has provided long-term protection for potato crops. Worldwide, CP" is resistant to all major groups of insecticides, including organophosphates and carbamates.The target site of organophosphate OP and carbamate insecticides is the same they inhibit the activity of "ChE. The function of acetylcholinesterase "ChE is degradation of acetylcholine "Ch -neurotransmitter in the insect cholinergic synapses. Mutations in the "ChE-encoding locus have been shown to confer target site insensitivity to organophosphate and carbamate insecticides, leading to modification of "ChE M"CE . " range of other amino acid substitutions in "ChE confer insecticide resistance, and these mutations typically reside near to or within the active site of the enzyme. Such "ChE mutations, associated with insecticide resistance, mostly known as "ce in Drosophila, have also been observed in other species, including L. decemlineata. "ased on bioassays and literature, modified/insensitive "ChE confers two major patterns of resistance to OPs/ carbamates. Pattern I resistance is characterized by significantly higher resistance ratios RR much greater reduction in the sensitivity of "ChE at the biochemical level to carbamates than to organophosphate insecticides. Pattern II resistance is characterized by resistance ratios and/or reductions in the sensitivity of "ChE that are approximately equivalent for both carbamates and OPs. There are also a few species for which an insensitive "ChE has been reported and for which molecular data have been collected, but for which the resistance profiles for both OPs and carbamates have not been reported. For CP", both patterns were registered.

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Section: Management Of Colorado Potato Beetlementioning

confidence: 99%

Role of AChE in Colorado Potato Beetle (Leptinotarsa decemlineata Say) Resistance to Carbamates and Organophosphates

Kostić¹,

Stanković²,

Kuzevski³

2016

Insecticides Resistance

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“…The main past and current control strategies of the CPB rely on the use of pesticides (Zabel et al 2002;Grafius and Douches 2008). Despite the fact that the use of insecticides resulted in a drastic reduction of CPB populations, resistance development against the active substances has been observed.…”

Section: Management Practisesmentioning

confidence: 99%

Managing the Colorado potato beetle; the need for resistance breeding

Maharijaya

Vosman²

2015

Euphytica

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The Colorado potato beetle (CPB) is one of the pest insects that significantly can decrease the production of potato when no control measures are taken. The fast, flexible and diverse life cycle of the CPB, its highly destructive feeding habits, and high adaptability to a variety of environment stresses, have made the control of CPB a difficult task. This paper briefly reviews the information on all aspects of CPB management to come to an integrated pest management approach: the biology of the CPB, management practices including their limitations and drawbacks, as well as the need to incorporate host plant resistance into potato varieties. Several aspects of potato breeding for resistance to CPB are discussed. We evaluate the availability of natural variation present in potato wild relatives, the considerations in choosing a specific wild relative, and constraints in using them from biological, environmental and genetic point of view, in which newly developed technologies play an important role. We also consider recently developed GM approaches. We conclude that varieties resistant to CPB are desperately needed by farmers and demanded by society, and that the means to develop them are available.

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“…None of the control techniques, during the longlasting history, developed against this pest has provided long-term protection for potato crops. CPB still remains a major threat to potato production because of its resistance to all major groups of insecticides [5][6][7][8][9][10][11][12][13][14][15][16][17][18]. Numerous alternative control strategies for Colorado potato beetle were investigated in the last few decades [19][20][21][22][23][24][25][26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Role of Carboxylesterases (ALiE) Regarding Resistance to Insecticides: Case Study of Colorado Potato Beetle (Leptinotarsa decemlineata Say)

Stanković¹,

Kostić²

2017

Insect Physiology and Ecology

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Colorado potato beetle is one of the most important pests because of rapid and strongly developed resistance to insecticides. Resistant insects' populations may detoxify or degrade the toxin faster than susceptible insects, or quickly rid their bodies of the toxic molecules. Resistant populations may possess higher levels or more efficient forms of these enzymes. Insecticide metabolic destruction inside the target organism is a common defensive mechanism, decreasing the duration and intensity of the exposure of the target site, lowering the probability of a lethal outcome. Three major mechanisms of metabolic transformation of insecticides underlie the vast majority of examples of biotransformation-based resistance: (i) oxidation; (ii) ester hydrolysis; and (iii) glutathione conjugation. Pyrethrins, pyrethroids, organophosphates, carbamates and other insecticides are degraded by hydrolysis. Insecticide detoxification primarily unfolds through molecule hydrolysis on different sites, thereby splitting ester, carboxyl-ester, amide and other chemical bonds. The most important hydrolytic enzymes are phosphoric triesters and carboxylesterases (ALiE esterases). Structural mutations in mutant carboxylesterases have now been widely described showing metabolic resistance to organophosphate and pyrethroid insecticides and relatively few cases of resistance to carbamates role. Carboxylesterases role in Colorado potato beetle resistance was confirmed by many authors.

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New Pesticides for Potato Protection Against the Colorado Potato Beetle (Leptinotarsa Decemlineata Say.) and Late Blight (Phytophtora Infestans Mont. De Bary)

Cited by 6 publications

References 0 publications

Role of AChE in Colorado Potato Beetle (Leptinotarsa decemlineata Say) Resistance to Carbamates and Organophosphates

Role of AChE in Colorado Potato Beetle (Leptinotarsa decemlineata Say) Resistance to Carbamates and Organophosphates

Managing the Colorado potato beetle; the need for resistance breeding

Role of Carboxylesterases (ALiE) Regarding Resistance to Insecticides: Case Study of Colorado Potato Beetle (Leptinotarsa decemlineata Say)

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