Abamectin resistance and resistance mechanisms in<i>Tetranychus urticae</i>populations from cut flowers greenhouses in Turkey

Solmaz, Erdem; Çevik, Bayram; Ay, Recep

doi:10.1080/01647954.2020.1727009

Cited by 15 publications

(14 citation statements)

References 23 publications

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“…The results indicate the emergence of resistance of harmful mites, which has been reported by some other studies [21,22]. Previous studies did not confirm the ovicidal effects of abamectin; rather, these studies mainly discussed the acaricidal mode of action of abamectin [23,24]. Ovicidal effects were also confirmed from the treatment in which we applied abamectin and hexythiazox a few days apart.…”

Section: Discussionsupporting

confidence: 75%

Results of the Single Release Efficacy of the Predatory Mite Neoseiulus californicus (McGregor) against the Two-Spotted Spider Mite (Tetranychus urticae Koch) on a Hop Plantation

et al. 2020

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In 2015, we studied the efficiency of the predatory mite Neoseiulus californicus (McGregor) for suppression of the two-spotted spider mite Tetranychus urticae in a field experiment at a hop plantation. We randomly arranged four treatments in a three-block experiment. Fungicides were used in all treatments; insecticides were used in all treatments except the predatory mite treatment and acaricides were used in only two treatments. A single inundative release of the mite N. californicus was carried out on 4 July. On four different dates (10 June, 17 July, 29 July and 9 August), we counted the eggs and the mobile stages (larvae, nymphs and adults) of the two-spotted spider mite in all four treatments. In the treatment with the predatory mite, we established the fewest eggs and mobile stages of T. urticae 14 days after the release of the predator. The selected acaricides in our research acted in a primarily ovicidal manner, but we did not detect satisfactory effects on the mobile stages of the two-spotted spider mite. This result suggests the emergence of resistance of two-spotted spider mites to the acaricides hexythiazox and abamectin. Our research established comparable effects of the predatory mite N. californicus and acaricides, and further improvement of the efficiency would require release of the natural enemy into a hop plantation in mid-June, followed by a second release three weeks later. The costs of acaricide use in our experiment were from 12.7-fold (two sprayings of hexythiazox, and a single spraying with abamectin) to 17.8-fold (single treatments of hexythiazox and abamectin) lower than those of a single release of the biological control agent in question. The results of our study represent a starting point for future research, which could achieve satisfactory results in suppressing two-spotted spider mites on a hop plantation by repeated use of the predatory mite N. californicus.

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Section: Discussionsupporting

confidence: 75%

Results of the Single Release Efficacy of the Predatory Mite Neoseiulus californicus (McGregor) against the Two-Spotted Spider Mite (Tetranychus urticae Koch) on a Hop Plantation

et al. 2020

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“…Because of its short life cycle, high reproductive potential, arrhenotokous parthenogenesis and frequent exposure to pesticides, T. urticae has evolved resistance to most kinds of pesticides (van Leeuwen et al ., 2010). In China and other regions, T. urticae has developed resistance to organophosphates (OPs), carbamates, pyrethroids and even some recently developed compounds (Xu et al ., 2018b; Liu et al ., 2020; Namin et al ., 2020; Papapostolou et al ., 2021; Simma et al ., 2020; Solmaz et al ., 2020). Failures of chemical control resulting from resistance have frequently occurred in the field (van Leeuwen et al ., 2010; Funayama, 2015).…”

Section: Introductionmentioning

confidence: 99%

Frequencies and mechanisms of pesticide resistance in Tetranychus urticae field populations in China

Zhang

et al. 2021

Insect Science

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The two‐spotted spider mite Tetranychus urticate is an important agricultural pest worldwide. It is extremely polyphagous and has developed resistance to many pesticides. Here, we assessed the pesticide resistance of seven field populations of T. urticae in China, their target site mutations and the activities of their detoxification enzymes. The results showed that abamectin and the traditional pesticides pyridaben, profenofos and bifenthrin had higher resistance or lower toxicity than more recently developed pesticides including chlorfenapyr, spinetoram, cyflumetofen, cyenopyrafen, bifenazate and B‐azolemiteacrylic. The frequency of point mutations related to abamectin resistance, G314D in the glutamate‐gated chloride channel 1 (GluCl1) and G326E in GluCl3, ranged 47%–70% and 0%–97%, respectively. The frequency of point mutations in A1215D and F1538I of the voltage‐gated sodium channel gene (VGSC), which may increase resistance to pyrethroids, ranged 88%–100% and 10%–100%, respectively. For target sites related to organophosphate resistance, mutation frequencies ranged 25%–92% for G119S and 0%–23% for A201S in the acetycholinesterase gene (Ace). Mutation G126S in the bifenazate resistance‐related cytochrome b gene (Cytb) was observed in three of the seven T. urticae populations. Higher activities of detoxification enzymes (P450, GST, CarEs and UGTs) were observed in two T. urticae populations, with significant difference in the XY‐SX population. These results provide useful information on the status of pesticide resistance of T. urticae in China and suggest that T. urticae field populations may have multiple resistance mechanisms.

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“…A leaf disc bioassay with a spray tower was used to determine the LC50 values of abamectin, hexythiazox, and spiromesifen for susceptible and greenhouse populations of T. urticae (Yaman et al, 2016;Solmaz et al, 2020). Bioassay studies were started after the populations had reached sufficient density in the rearing room.…”

Section: Toxicity Assaysmentioning

confidence: 99%

Abamectin, Hexythiazox and Spiromesifen Resistance in Populations of Tetranychus urticae Koch (Acari:Tetranychidae) Collected from Cucumber Greenhouses in Tokat Province

Balkan

2022

Turkish JAF Sci.Tech.

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Tetranychus urticae Koch (Acari: Tetranychidae) is one of the most important pests in greenhouses. This harmful pest has rapidly developed high resistance to many classes of acaricides. In this study, T. urticae populations were collected from cucumber greenhouses in Gümenek village, Tokat, Turkey. Growers in this location use acaricides such as abamectin, hexythiazox and spiromesifen to suppress T. urticae populations. The study aimed to determine the resistance levels of T. urticae populations against to mentioned acaricides. The LC50 values of the collected populations were determined by the spray tower-leaf disc method. The resistance rates were found by dividing the LC50 values of the collected greenhouse populations by the LC50 value of the susceptible population. The resistance levels of T. urticae were determined to be between 1.88-2.14-folds against abamectin, 1.67-1.84 folds against hexythiazox and 1.77-2.09 folds against spiromesifen. According to these results, a low rate of resistance development was observed against abamectin, hexythiazox and spiromesifen.

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Abamectin resistance and resistance mechanisms inTetranychus urticaepopulations from cut flowers greenhouses in Turkey

Cited by 15 publications

References 23 publications

Results of the Single Release Efficacy of the Predatory Mite Neoseiulus californicus (McGregor) against the Two-Spotted Spider Mite (Tetranychus urticae Koch) on a Hop Plantation

Results of the Single Release Efficacy of the Predatory Mite Neoseiulus californicus (McGregor) against the Two-Spotted Spider Mite (Tetranychus urticae Koch) on a Hop Plantation

Frequencies and mechanisms of pesticide resistance in Tetranychus urticae field populations in China

Abamectin, Hexythiazox and Spiromesifen Resistance in Populations of Tetranychus urticae Koch (Acari:Tetranychidae) Collected from Cucumber Greenhouses in Tokat Province

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