Side effects of abamectin and hexythiazox on seven predatory mites

Alhewairini, Saleh S.; Al-Azzazy, M. M.

doi:10.1590/1519-6984.251442

Cited by 5 publications

(1 citation statement)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, it is essential to acquire information on the toxicity of commonly used acaricides to these predators [13]. Based upon the study of the effects of two acaricides (abamectin and hexythiazox) on six phytoseiid mites, it is recommended that the frequent use of acaricides against phytophagous mites should be avoided and the feasibility of biological control programs should be promoted to protect the environment, health of living individuals, and the nontarget organisms [45]. Our studies of the effects of two acaricides (abamectin and fenpyroximate) on a phytoseiid mite revealed a similar result.…”

Section: Side Effects Of Pesticides On Phytoseiid Mitesmentioning

confidence: 99%

Side Effects of Pesticides on Population Growth Parameters, Life Table Parameters, and Predation of the Subsequent Generation of Phytoseiid Mites

Hamedi¹

2022

Pesticides - Updates on Toxicity, Efficacy and Risk Assessment

View full text Add to dashboard Cite

Simply estimating pesticide effects on natural enemies of pests by measuring only lethal effects, or sublethal effects on the only treated natural enemies, may underestimate the total negative effects on them. So sublethal effects on subsequent generations should be assessed to estimate the total effects of their applications. Sublethal effects of commonly used acaricides on population growth parameters, life table parameters, and predation of the predatory mites of the family phytoseiidae were investigated. For this reason, offspring of treated females were used. Gross reproductive rate (GRR), the intrinsic rate of birth (b), the intrinsic rate of death (d), mean generation time (T), survivorship (Lx), life expectancy (ex), and prey consumption were affected in comparison with control. It could be concluded that sublethal concentrations of most applied pesticides can significantly reduce population growth and life table parameters, and this should be considered in integrated pest management (IPM) programs.

show abstract

Section: Side Effects Of Pesticides On Phytoseiid Mitesmentioning

confidence: 99%

Side Effects of Pesticides on Population Growth Parameters, Life Table Parameters, and Predation of the Subsequent Generation of Phytoseiid Mites

Hamedi¹

2022

Pesticides - Updates on Toxicity, Efficacy and Risk Assessment

View full text Add to dashboard Cite

show abstract

Survey on Aculops lycopersici and operational factors potentially affecting successful pest management among 50 tomato producers in Germany

Pfaff,

Böckmann

2023

J Plant Dis Prot

View full text Add to dashboard Cite

Aculops lycopersici (Acari: Eriophyoidea) is a pest in tomato cultivation worldwide. In recent years, the number of reports of A. lycopersici infestations in tomato have increased in Germany. In the first half of 2019, a survey of 50 tomato producing farms was conducted to assess the occurrence of A. lycopersici and the impact this pest has on tomato cultivation in Germany. The participating farms represented ~ 3.5% of the 1448 farms in Germany with protected tomato production in 2019. Total tomato production area considered in the survey was 131.8 ha which corresponds to ~ 34% of the 385.63 ha of protected tomato production area in Germany in this year. A. lycopersici presence was reported by 33 of the 50 surveyed farms, within the last 5 years. Amongst these 50 participants it was the pest with the highest relative importance in terms of plant protection effort exerted. A. lycopersici occurrence was reported more frequently from production systems with a higher intensification. For instance, heating in cold months and a larger production area were considered intensification factors in this study. However, due to autocorrelation between intensification factors it was not possible to link increased occurrence to specific factors. As the intensification factors favouring A. lycopersici occurrence are more prevalent in integrated production, those farms faced A. lycopersici occurrence more often than the organic growers in this study. Plant protection strategies often combine broad treatments of sulphur with local abamectin treatments, removal of infested plant material and the introduction of natural enemies.

show abstract

Contact Toxicity of an Essential Oil from Acorus calamus (Acoraceae) Rhizomes against Tetranychus urticae and Tetranychus macfarlanei (Acari: Tetranychidae) and Amblyseius longispinosus (Acari: Phytoseiidae)

Auamcharoen,

Janlaor

2023

Journal of Entomological Science

View full text Add to dashboard Cite

The contact toxicity activity of an essential oil extracted from Acorus calamus (L.) (Acoraceae) was evaluated against the phytophagous spider mites Tetranychus urticae Koch and Tetranychus macfarlanei Baker & Pritchard (Acari: Tetranychidae) and the predatory mite Amblyseius longispinosus (Evans) (Acari: Phytoseiidae). Adult mortality 24 h following application of 5% (v/v) concentration of the essential oil exceeded 90% for T. urticae and T. macfarlanei. Application of 1.2–5% concentrations of the essential oil to mite eggs reduced egg viability, with 0–54% hatch of T. urticae eggs and 0% hatch of T. macfarlanei eggs 6 d following treatment. At 2.5%, the essential oil was toxic to A. longipinosus by residual contact toxicity (58% mortality) and direct contact toxicity (0% mortality). No eggs and 47.6 eggs of A. longispinosus were oviposited with residual contact toxicity and direct contact toxicity, respectively. The chemical constituents of the essential oil, as determined with gas chromatography–mass spectrometry, showed that camphor (41.07%) and 5,5-dimethyl-2-ethynylcyclopent-2-en-1-ol (27.96%) were the major chemical compounds of the essential oil. These results indicate that this essential oil extracted from fresh A. calamus rhizomes could prove useful in controlling T. urticae and T. macfarlanei. Our findings also showed that the essential oil had no deleterious effects against A. longispinosus by direct contact toxicity test; however, A. longispinosus consuming spider mite eggs treated with essential oil were negatively impacted.

show abstract

Side effects of abamectin and hexythiazox on seven predatory mites

Cited by 5 publications

References 15 publications

Side Effects of Pesticides on Population Growth Parameters, Life Table Parameters, and Predation of the Subsequent Generation of Phytoseiid Mites

Side Effects of Pesticides on Population Growth Parameters, Life Table Parameters, and Predation of the Subsequent Generation of Phytoseiid Mites

Survey on Aculops lycopersici and operational factors potentially affecting successful pest management among 50 tomato producers in Germany

Contact Toxicity of an Essential Oil from Acorus calamus (Acoraceae) Rhizomes against Tetranychus urticae and Tetranychus macfarlanei (Acari: Tetranychidae) and Amblyseius longispinosus (Acari: Phytoseiidae)

Contact Info

Product

Resources

About