Figure - uploaded by A. Rami Horowitz
Content may be subject to copyright.
Comparative translaminar activity of acetamiprid and imidacloprid on adult mortality and progeny formation of Bemisia tabaci.
Source publication
Comparative bioassays of two chloronicotinyl insecticides, acetamiprid and imidacloprid, against the whitefly Bemisia tabaci (Gennadius), using foliar and systemic applications, were conducted under laboratory conditions and in field trials. Under controlled conditions, the ovicidal activity of foliar applications of acetamiprid on cotton seedlings...
Contexts in source publication
Context 1
... was found with the foliar application, both com- pounds had similar translaminar activity on whitefly adults and fecundity (table 3). However, acetamiprid showed a relatively strong effect on the nymphal (mostly first instar) stage, resulting at 50 mg a.i./l in 2% pupation; while imidacloprid had no appreciable effect in all the concen- trations tested up to 50 mg a.i./l (table 3). ...Context 2
... of translaminar studies were similar to the foliar studies. Both compounds had an effect on adult mortality and egg production; however, surviving eggs from acetamiprid-treated adults exhibited significantly lower pupation rates than those from imidacloprid-treated adults (table 3). These conclusions were substantiated by field trials in which acetamiprid had significantly higher foliar activity. ...Similar publications
The cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae), is a key cucurbits pest in Iran and is managed with repeated insecticide applications. Reports of insecticide control failures have recently increased, particularly with imidacloprid. To quantify resistance to imidacloprid in cotton aphid, seven populations were collected from 7 differ...
Chlorantraniliprole is the first commercial insecticide from a new class of chemistry, the anthranilic diamides. Chlorantraniliprole provides an effective alternative insecticide for control of Plutella xylostella (L.) populations resistant to other insecticides. Baseline susceptibility to chlorantraniliprole for P. xylostella was surveyed previous...
We analyzed the aspects of lethality, genotoxicity, and cytotoxicity in the ten spotted live-bearer exposed under laboratory conditions to the pirimicarb-based formulation Patton Flow(®) (50% active ingredient (a.i.)). Acute effects were evaluated using different end points for lethality, genotoxicity, and cytotoxicity. Median lethal concentration...
Codling moth, Cydia pomonella, is one of the most serious pests of apple and pear worldwide. This study evaluates the efficacies of a granulovirus, a Bacillus thuringiensis (Bt) strain and their combination in the control of C. pomonella in China. A Cydia pomonella granulovirus (CpGV) was isolated from C. pomonella cadavers in an orchard in Gansu,...
To subsidize an Insect Resistance Management (IRM) program we characterized the baseline susceptibility to the Vip3Aa20 Insecticidal Protein in Brazilian populations of S. frugiperda and D. saccharalis. The bioassay procedure was diet surface treatment with purified Vip3Aa20 protein. The estimated LC50 ranged from 92.38 to 611.65 ng Vip3Aa20/cm2 to...
Citations
... Whitefly assists as a vector of various viral disease known as (CLCV) cotton leaf curl virus (Malik et al.,1999). It serves as a vector of 100 diseases of the plants (Horowitz et al., 1998). These pests become more destructive during different plant stages like seedling as well as vegetative growth of cotton plant due to sucking of cell sap Arshad and Suhail (2010). ...
... Neem oil contains effective compounds against insect pests either as anti-feeding or as insect growth regulators that lead gradually to mortality of treated insects (Kraus et al., 1981 andLee et al., 1991). Aphid numbers were also reduced gradually with Confidor ® , a nicotinic acetylcholine receptor agonist that was slightly potent on days 7 and 14 after application, as reported by Tomizawa & Casida (2003) and Horowitz et al. (1998). In this study, numbers of insecticides were evaluated against whitefly on cucumber fields during 2021 and 2022. ...
... From these results, it appears that there is a significant difference between the nymph stages of the leafhopper in the degree of their effect and sensitivity to the used pesticide, which was inversely associated with the age of the nymph stage. As mentioned by [18]The advanced nymph stages of the whitefly are less sensitive to the growth regulator the recent phases, as the corrected mortality rate was reached when using the growth regulator in concentration 0.5ml/1 for phases I to IV (92.6,87.9,85.4% ) respectively. Treating the soil, where an increase in mortality rates was observed, using a Confider pesticide with increasing user concentration. ...
Cowpea leafhopper Amrasca biguttula is one of the important pests that afflict the cowpea crop in Iraq and cause economic losses. Therefore, chemical control was studied in the laboratory and its effectiveness in control was demonstrated, as a pesticide was used im-idacloprid ;Confider of the Neonicotinoid schemical group Confider concentration was used for spray treatment 25ml/L,50,75,100ml/l. The concentration used for soil treatment is 100g/ml,200,300 ,400g/ml. The results were the treatment of the lowest hatching rate was obtained in leafhopper eggs for spray treatment when using a concentration of 100ml (reached 79.44%), observed that the average of mortality rate resulting from the use of a the pesticide Confider reached to (33.47%) , It is noted that the highest mortality rate was achieved after the passage of time 72 hours of treatment and reached (39.73%).
... 7 Neonicotinoids with systemic and translaminar properties, high residual activity and no cross-resistance to pyrethroids have shown excellent potential against whitefly, and have been widely used since the first product, imidacloprid, was introduced to the market. 8,9 However, the long-term and widespread use of neonicotinoids has led B. tabaci to develop high-level resistance to some firstand second-generation neonicotinoids, such as imidacloprid, thiamethoxam, acetamiprid, nitenpyram and thiacloprid. [10][11][12] Dinotefuran was developed by Mitsui Chemicals in 1998 and is the unique product of the third-generation of neonicotinoids. ...
BACKGROUND
Bemisia tabaci (Gennadius) is a serious agricultural pest worldwide. Neonicotinoids are the most important new class of synthetic insecticides used in the management of B. tabaci. However, B. tabaci populations have developed resistance to various active ingredients in neonicotinoids following long‐term and widespread application.
RESULTS
Dinotefuran exhibited high toxicity against most B. tabaci field populations. One population (Din‐R) with a high level of resistance to dinotefuran (255.6‐fold) was first identified in the field. The Din‐R population exhibited medium to high levels of resistance to all the tested neonicotinoid insecticides and a high level of resistance to spinetoram. Genetic inheritance analysis revealed that resistance to dinotefuran was incompletely recessive and polygenic. The synergist piperonyl butoxide significantly increased the toxicity of dinotefuran to Din‐R. P450 activity in the Din‐R population was 2.19‐fold higher than in the susceptible population. RNA‐sequencing analysis showed that 12 P450 genes were significantly upregulated in the Din‐R population, of which CYP6DW5, CYP6JM1 and CYP306A1 were found to exhibit more than 3.00‐fold higher expression in Din‐R when using a reverse transcription quantitative real‐time polymerase chain reaction. Expression of eight P450 genes was obviously induced by dinotefuran, and CYP6DW5 showed the highest expression level. After knockdown of CYP6DW5 in Din‐R, the toxicity of dinotefuran increased significantly.
CONCLUSION
P450 had a crucial role in dinotefuran resistance in B. tabaci, and CYP6DW5 was involved in the resistance. These results provide important information for the management of resistance in B. tabaci and improve our understanding of the resistance mechanism of dinotefuran. © 2022 Society of Chemical Industry.
... Recently, the extensive use of IMI in agricultural production has caused a residual deposition in agricultural products and the environment (Peng et al., 2021). Additionally, IMI has higher residual levels (Horowitz et al., 1998) in fish tissues which are the targets of pesticide accumulation such as muscles, gills, and liver leading to the significant damage and degrading the quality of fish farming and human consumption (Haredi et al., 2020;El-Garawani et al., 2022). Several studies address different toxicological effects of IMI in Nile tilapia (Oreochromis niloticus) including hematological disorders (Américo-Pinheiro et al., 2019), gene down-regulation, and histopathological changes (Ansoar-Rodríguez et al., 2016), and oxidative stress (Naiel et al., 2020a). ...
The current study was a pioneer attempt to explore the toxicological impacts of imidacloprid (IMI) pesticide and to investigate the efficiency of Hyphaene thebaica fruit (HTF) as a dietary supplement in attenuating the IMI effect in African catfish (Clarias gariepinus). Fish were sampled after 2 months of exposure to IMI (1/5 LC50: nominal 2.03 μg/L) and HTF (15 g/kg diet) supplementation, in combination or individually. Growth, hematological, stress, and antioxidant indicators, besides the mRNA expression of various genes in gills tissues and immunohistochemical and economic parameters, were assessed. The outcomes demonstrated that IMI exposure induced behavioral changes, and a significant decrease (p < 0.05) in the majority of the measured variables including growth, hematology, economic efficiency, neurotransmitter (acetylcholine esterase), glucose level, and antioxidant capacity (catalase, and superoxide dismutase (SOD)). Additionally, IMI dysregulated the expression of tumor necrosis factor-alpha (TNF-α), Toll-like receptor 5 (TLR-5), Toll-like receptor 1 (TLR-1), lysozyme C (LYSC), lysozyme G (LYSG), transforming growth factor-beta (TGF-β), myeloperoxidase (MYE), CXC chemokine (CXC), heat shock proteins 90 (HSP90), and SOD1 in the gills. On the other hand, marked increases in the serum malondialdehyde and stress indicator (cortisol) with the highest mortality losses were detected in IMI-exposed fish. Histopathological disorders are detected in the brain post-exposure to IMI including marked neuronal vacuolation, neuronophagia, and complete neuronal loss with weak BCL-2 and marked caspase-3 immunoreactivity. The dietary intervention with HTF revealed a noticeable modulation in the aforementioned parameters and regeneration in the histological architecture. Taken together, the IMI induces severe stress, and behavioral and histological alterations, and impairs the C. gariepinus growth, economic efficiency, and hematological, and antioxidant efficacy through the negative transcriptional impact on the associated genes. Nevertheless, the dietary HTF (15 g/kg diet) could be utilized as a potential natural growth promoter, antioxidant modulator, and against IMI hazards for sustaining aquaculture.
... Belonging to the chloronicotinyl neonicotinoids, imidacloprid and acetamiprid are two widely used insecticides. They have a broad insecticidal spectrum, excellent systemic and translaminar properties, and highly active residuals (Horowitz et al. 1998). Firstly, acetamiprid (Aceta) is extensively used in agriculture world-wide, mainly, to control lepidopteran and hemipteran pests in a variety of crops (Guedegba et al. 2019;Cossi et al. 2020). ...
This study aimed to examine the side effects of selected neonicotinoids (Acetamiprid, Aceta, and Imidacloprid, Imid) on Oreochromis niloticus juveniles. The acute toxicity, Probit method, revealed an LC 50 of 195.81 and 150.76 ppm for Aceta/96 h and Imid/72 h respectively. The fish were divided into three groups that were exposed, for 21 days (n = 5/replicate), to 1/10 of the LC 50 of either neonicotinoids, however, the third was an unexposed control group. Results of erythrocytic micronucleus (MN), and nuclear abnormalities (NA) showed that Aceta and Imid exposure caused a significant ( p < 0.05) increase in MN by ~ 2.2 and ~ 10 folds, respectively relative to control. NAs occurred at the order of kidney-shaped > budding > binucleated in Aceta, however, budding > binucleated > kidney-shaped was noticed in the Imid group. Histopathological changes in gills, liver, and muscles were observed significantly in both exposed groups with more severity in the Imid group. Collectively, Aceta and Imid have potential genotoxicity and histopathological alterations in O. niloticus .
... The current study has demonstrated that Viper 46 EC ® (Acetamiprid 16g/l + Indoxacarb 30g/l) was very effective in controlling whiteflies for both cropping seasons, and effective in controlling thrips during the dry season as revealed by trap catches within the crop. These results are in line with the studies of Horowitz et al. (1998) who also demonstrated the efficacy of Acetamiprid against whiteflies on cotton. Zabel et al. (2001) also reported the efficacy of Acetamiprid against whiteflies on tomato. ...
... Due to high availability of hybrid seeds in local markets and agromore on hybrids seed as compared to local seeds. This result is in line with findings of Horowitz et al. (1998). Table 3 shows that, cabbage butterfly, aphids, cutworms, fruit and shoot borer, leaf miner and whitefly were major destructive pest as reported by farmers during field survey. ...
A study was carried out in Banganga Municipality of Kapilvastu district to know the farmer's knowledge, practices, and management method used in insect pests of vegetables. The survey involved 160 randomly selected farmers who were interviewed using semi-structured questionnaires and also evaluated based on direct field observation. The data were analyzed using SPSS and Microsoft-Excel. Tomato, potato, chili, cauliflower, cabbage, garlic, and onion were major vegetables grown by the farmers during the winter season and cucumber, bottle gourd, bitter gourd, sponge gourd, tomato, chili, brinjal during the summer season. Aphids, cabbage butterfly, pumpkin beetle, tomato leaf miner, cutworm, and tomato fruit borer were the major pests in vegetable field. Knowledge of vegetable farmers regarding insect pest identification was also observed i.e., 86% of respondents identified insect pest by the help of Junior Technical Assistance and agro-vets, and 10% of respondents identified insects by their own knowledge. About 60% of respondents were found using chemical pesticides such as; chlorpyrifos, cypermethrin, imidacloprid, alphamethrin etc. to control pests, 4% of respondents were using botanical plant extract i.e., jholmal, neem extract, cow urine and 24% were using cultural methods such as crop rotation, mulching, tillage operation. Only a few farmers' groups were found to know about IPM, biological pest management practices, and conservation of natural enemies.
... With reference to ( [5] , they reported that imidacloprid @ 25ml a.i./ha at 2, 7 and 14 days after application, were found effective against whitefly population. ...
Chemigation helps to reduce the labour cost, time and wind drift problems and also give same efficiency in terms of pest management as compared to foliar spray. Out of ten insecticidal treatments at different intervals, data indicated that among foliar spray treatment Imidacloprid 17.8 SL + Cynatraniliprole 10.26 OD was the best in reducing almost all the five major insect pests, recording 0.89 aphid index, 0.42 whitefly/leaf except jassids. Among chemigation treatment Imidacloprid 17.8 SL + Cynatraniliprole 10.26 OD was the best treatment recording 0.54 pod borer and 0.89 spotted pod borer larva per plant.
... All these Ahmed et al., 2020, reported that acetamiprid was highly effective against aphid. Acetamiprid interacts with nicotinic acetylcholine receptors at the central and peripheral nervous system, resulting in excitation and paralysis followed by death of aphids (Ghanim & Ishaya, 2009 Horowitz et al., 1998, reported that Acetamiprid had higher foliar activity, Imidacloprid was shown to have somewhat higher efficacy against adult white flies in laboratory. They also suggested these two insecticides should not be used interchangeably; Imidacloprid is appropriate for soil application while Acetamiprid is more effective when applied to foliage of plants. ...
