Genomics Approaches for Insect Control and Insecticide Resistance Development in Date Palm

2021 ◽  
pp. 215-248
Author(s):  
Babiker M. A. Abdel-Banat ◽  
Hamadttu A. F. El-Shafie
Keyword(s):  
Insecticide Resistance ◽  
Date Palm ◽  
Insect Control ◽  
Resistance Development

scholarly journals The influence of the molecular basis of resistance on insecticide discovery

1998 ◽  
Vol 353 (1376) ◽  
pp. 1723-1728 ◽  
Author(s):  
M. D. Broadjurst
Keyword(s):  
Insecticide Resistance ◽  
Molecular Basis ◽  
Resistance Mechanisms ◽  
Insect Control ◽  
Control Technology ◽  
Main Section ◽  
High Quality ◽  
Resistance Development ◽  
Other Information ◽  
The Impact

This paper focuses on the process of invention and development of new insecticides and the impact of current research in resistance mechanisms on that process. The topic is introduced in the context of (i) the critical need to develop new insect–control agents to ensure a continued supply of high–quality food and fibre; (ii) how resistance development will continue to influence the potential to ensure the supply of these essentials; and (iii) why new insect–control technology is welcomed by growers. The main section of the paper describes a generic agrochemical invention process and discusses the impact that an understanding of the molecular basis of resistance will have on the various stages of this process, using specific examples to illustrate these points. By focusing on insecticide invention, this paper provides a context in which other information more specific to insecticide resistance from this issue can be understood.

Activities of detoxifying enzymes in adults of houseflies Musca domestica L. selected with chlorfenapyr

Biomics ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 492-503
Author(s):  
E.A. Silivanova ◽  
P.A. Shumilova ◽  
M.A. Levchenko
Keyword(s):  
Alkaline Phosphatase ◽  
Insecticide Resistance ◽  
Musca Domestica ◽  
Glutathione S Transferase ◽  
Detoxifying Enzymes ◽  
Resistance Development ◽  
Phosphatase Activities ◽  
Biochemical Mechanisms ◽  
Males And Females

In insects, biochemical mechanisms of insecticide resistance base on increasing of activities of main detoxyfying enzymes – monooxygenases, nonspesific esterases, and glutathion-S-transferases. Currently, the progress of resistance development and the degree of contributing enzymes to resistance in insects have been studied for certain insecticides. The goal of this study was to assess activities of monooxygenase, carboxylesterase, glutathione-S-transferase, and alkaline phosphatase in females and males housefly Musca domestica in the second, fourth, sixth, eighth and tenth generations of the chlorfenapyr-selected strain. Evaluation of chlorfenapyr susceptibility showed that adults M. domestica in tenth generations was tolerating to chlorfenapyr as the resistance ration value was 3.6. In certain generations of chlorfenapyr-selected strain M. domestica, monooxygenase activities in males and females were 1.4-2.1 times more, and alkaline phosphatase activities in females were 2.3-2.7 times more than that in control insects. Glutathione-S-transferase activities had no significant differences in adults M. domestica of control and chlorfenapyr-selected strains. For chlorfenapyr-selected strain M. domestica, activities of monooxygenase, carboxylesterase, and alkaline phosphatase differed in males and females of same generations that suggests that mode and pattern of resistance development might be sex-specific in this specie.

scholarly journals Current Status of Aedes aegypti Insecticide Resistance Development from Banjarmasin, Kalimantan, Indonesia

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
P. H. Hamid ◽  
V. I. Ninditya ◽  
J. Prastowo ◽  
A. Haryanto ◽  
A. Taubert ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Insecticide Resistance ◽  
Point Mutation ◽  
Mosquito Control ◽  
Control Strategies ◽  
Current Status ◽  
Resistance Development ◽  
Health Authorities ◽  
Public Health Authorities ◽  
High Level

Aedes aegypti represents the principal vector of many arthropod-borne diseases in tropical areas worldwide. Since mosquito control strategies are mainly based on use of insecticides, resistance development can be expected to occur in frequently exposed Ae. aegypti populations. Surveillance on resistance development as well as testing of insecticide susceptibility is therefore mandatory and needs further attention by national/international public health authorities. In accordance, we here conducted a study on Ae. aegypti resistance development towards several often used insecticides, i.e., malathion, deltamethrin, permethrin, λ-cyhalothrin, bendiocarb, and cyfluthrin, in the periurban area of Banjarmasin city, Kalimantan, Indonesia. Our results clearly showed resistance development of Ae. aegypti populations against tested insecticides. Mortalities of Ae. aegypti were less than 90% with the highest resistance observed against 0.75% permethrin. Collected mosquitoes from Banjarmasin also presented high level of resistance development to 0.1% bendiocarb. Molecular analysis of voltage-gated sodium channel (Vgsc) gene showed significant association of V1016G gene point mutation in resistance Ae. aegypti phenotypes against 0.75% permethrin. However, F1534C gene point mutation did not correlate to Ae. aegypti insecticide resistance to 0.75% permethrin. Irrespective of periurban areas in Kalimantan considered as less densed island of Indonesia, Ae. aegypti-derived resistance to different routinely applied insecticides occurred. Our findings evidence that Ae. aegypti insecticide resistance is most likely spreading into less populated areas and thus needs further surveillance in order to delay Ae. aegypti resistance development.

scholarly journals Reduced response of insecticide-resistant aphids and attraction of parasitoids to aphid alarm pheromone; a potential fitness trade-off

2005 ◽  
Vol 95 (1) ◽  
pp. 37-46 ◽  
Author(s):  
S.P. Foster ◽  
I. Denholm ◽  
R. Thompson ◽  
G.M. Poppy ◽  
W. Powell
Keyword(s):  
Insecticide Resistance ◽  
Alarm Pheromone ◽  
Virgin Female ◽  
Pleiotropic Effect ◽  
Resistance Mechanisms ◽  
Diaeretiella Rapae ◽  
Resistance Development ◽  
Trade Off ◽  
Aphid Alarm Pheromone ◽  
Laboratory Bioassays

AbstractResponse to the alarm pheromone, (E)-β-farnesene, produced by many species of aphids, was assessed in laboratory bioassays using an aphid pest, Myzus persicae (Sulzer), and its primary endoparasitoid, Diaeretiella rapae (McIntosh). This was done in three separate studies, the first investigating responses of a large number of M. persicae clones carrying different combinations of metabolic (carboxylesterase) and target site (kdr) insecticide resistance mechanisms, and the other two investigating the responses of young virgin female adult parasitoids. In M. persicae, both insecticide resistance mechanisms were associated with reduced repellence suggesting that each has a pleiotropic effect on aphid behaviour. In contrast, D. rapae females were attracted to the alarm pheromone source. The implications of this apparent fitness trade-off for the evolution and dynamics of insecticide resistance, and the potential for using beneficial insects to combat resistance development are discussed.

scholarly journals Field-Evolved Sulfoxaflor Resistance of Three Wheat Aphid Species in China

Agronomy ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2325
Author(s):  
Xinan Li ◽  
Chao Wang ◽  
Qiuchi Li ◽  
Saige Zhu ◽  
Xujun Tian ◽  
...  
Keyword(s):  
Insecticide Resistance ◽  
Rhopalosiphum Padi ◽  
Aphid Species ◽  
Metopolophium Dirhodum ◽  
Resistance Development ◽  
New Class ◽  
Sap Feeding ◽  
Moderately Resistant

Sulfoxaflor belongs to a new class of insecticides which are effective against many sap-feeding pests. Sitobion miscanthi, Rhopalosiphum padi, and Metopolophium dirhodum are the predominant pests coexisting on wheat plants. It is unknown whether these aphid species have developed resistance to sulfoxaflor. Here, the susceptibilities of three wheat aphid species from different regions of China to sulfoxaflor were evaluated. The results showed that two S. miscanthi, one R. padi, and two M. dirhodum field populations were highly resistant to sulfoxaflor. Additionally, 13 S. miscanthi, 9 R. padi, and 4 M. dirhodum field populations were moderately resistant to sulfoxaflor. Analysis of differences in toxicity showed that the susceptibility levels of R. padi in 9 of 20 regions, M. dirhodum in 5 of 9 regions, and M. dirhodum in 3 of 9 regions to sulfoxaflor were greater than those of S. miscanthi, S. miscanthi, and R. padi in the same regions, respectively. Thus, each wheat aphid species has field populations that are highly sulfoxaflor resistant. The R. padi and M. dirhodum populations were more susceptible to sulfoxaflor than those of S. miscanthi. These findings provide new insights into insecticide resistance development and rational sulfoxaflor use.

scholarly journals Indiscriminate use of agro-veterinary pesticides in plague endemic foci in Tanzania: potential risk for development of insecticide resistance in flea vectors

2020 ◽  
Author(s):  
Grace Rugalema ◽  
Ladslaus Mnyone
Keyword(s):  
Insecticide Resistance ◽  
Resistance Mechanisms ◽  
Resistance Development ◽  
Agricultural Pesticides ◽  
Development Of Resistance ◽  
Direct Observations ◽  
Cropping Season ◽  
Lambda Cyhalothrin ◽  
Safety Procedures ◽  
Structured Questionnaire

Abstract Background: Agro-veterinary pesticides are increasingly associated with the development of resistance in arthropod disease vectors. However, no has been conducted so far to assess such risk in flea vectors despite the indiscriminate use of pesticides in plague endemic foci in Tanzania.Methods: We identified risk factors associated with the use of agro-veterinary pesticides, which could enhance development of resistance in flea vectors in two plague endemic districts, using structured questionnaire and direct observations.Results: Excessive and injudicious use of agricultural and veterinary pesticides was common in both Lushoto and Mbulu district. Most farmers (80%, n=73) were applying agricultural pesticides over three times per cropping season, did not adhere to manufacturers recommended doses, and had limited or no knowledge on safety procedures and adverse effects associated with pesticides. Up to 49% were applying pesticides more than twice the recommended doses. About 91% of respondents in Lushoto and 93% respondents in Mbulu reported using agricultural pesticides. The three (3) out of fourteen (14) most commonly used agricultural pesticides in Lushoto were master kinga72WP (mancozeb 640g/kg+cymoxanil 80g/kg) (44%), suracron720EC (profenos 500g/l EC) (25.3%) and Sumo 5EC (lambda-cyhalothrin) (18.7%). The three (3) out of seventeen (17) most commonly used agricultural pesticides in Mbulu were Dursban50W (Chlorpyrifos) (29%), Duduban 450EC (Cypermethrin 10g/lt+chloropyrifos 35g/lt) (18%) and Dursban+farmerzeb (Chlorpyrifos 48%, Mancozeb 80%WP). Cybadip (Cypermethrin) (≥45%) and paranex (alphacypermethrin) (≥13%) were the most commonly used livestock pesticides.Conclusion: This study identified injudicious uses and/or other malpractices, which enhance contamination of environments/surfaces with pesticides and consequently the exposure of flea vectors. Therefore, the flea vector populations in Lushoto and Mbulu districts are putatively under high risk of resistance development. Further studies are underway to confirm the insecticide resistance status, unravel distribution of the resistance, and involved resistance mechanisms.

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