Clofentezine and hexythiazox resistance in Tetranychus urticae Koch in Australia

Herron, Grant A; Edge, V. E.; Rophail, J.

doi:10.1007/bf00120501

Cited by 64 publications

(43 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This life stage selectivity of clofentezine with the bulb mite was similar to that reported previously for tetranychid mites (Aveyard et aL, 1986;Hoy and Ouyang, 1986;Neal et al, 1986;Brooker et al,, 1987;Welty et al, 1989;Rathman et al, 1990;Reissig and Hull, 1991;Thwaite, 1991;Herron et al,, 1993;Grosscurt et al, 1994). Further, the toxicity of clofentezine to adults was not increased by piperonyl butoxide (Table 1).…”

Section: Resultssupporting

confidence: 89%

“…1. ), is a specific acaricide that is particularly active against the eggs and larvae of several species of tetranychid mites (Aveyard et aL, 1986;Hoy and Ouyang, 1986;Neal et al, 1986;Brooker et al, 1987;Welty et al, 1989;Rathman et aL, 1990;Reissig and Hull, 1991;Thwaite, 1991;Herron et al, 1993;Grosscurt et al, 1994). However, little is known regarding its toxicity to other pest mites.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Clofentezine toxicity and fate in the bulb mite Rhizoglyphus echinopus (Acari: Acaridae)

1996

View full text Add to dashboard Cite

Clofentezine was toxic to bulb mite, Rhizoglyphus echinopus (Fumouze and Robin), eggs and larvae; however, it was not toxic to adults alone or in the presence of piperonyl butoxide. When adults were exposed to radioactive clofentezine, the acaricide was absorbed, metabolized and excreted. After 48 h exposure, 49.8% of the recovered radiocarbon was parent compound with 37.1, 9.1 and 3.6% detected in the container rinse, mite rinse and internal fraction, respectively. Homogenates of adults extensively metabolized clofentezine. The most active fraction was the 12 000 g supernatant plus glutathione followed in decreasing order by the supernatant, supernatant plus NADPH and the whole homogenate, each of which metabolized at least 16% of the acaricide.In the presence of piperonyl butoxide, in vitro metabolism of clofentezine by each of these active fractions was increased approximately 10%. Although it is possible that rapid metabolism could have contributed to the lack of toxicity of clofentezine to bulb mite adults, it is more likely that another major mechanism was involved. Perhaps adult bulb mites lack the sensitive target found in immature mites.

show abstract

Section: Resultssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Clofentezine toxicity and fate in the bulb mite Rhizoglyphus echinopus (Acari: Acaridae)

1996

View full text Add to dashboard Cite

show abstract

“…Spider mites are one of the most serious pests of fruit trees. Because of their rapid development of resistance to acaricides, it is difficult to achieve effective spider mite management depending solely on acaricides (Cranham and Helle, 1985;Herron et al, 1993;Campos et al, 1996;Takafuji et al, 2000). Predacious phytoseiid mites are important biological control agents for spider mite control, and various species of predacious mites are often abundantly found in pesticide-reduced and pesticide-free fruit orchards (Koike et al, 1998(Koike et al, , 2000Kishimoto, 2002;Toyoshima, 2003).…”

Section: Introductionmentioning

confidence: 99%

Artificial microstructure encouraging the colonization of the predacious mite, Neoseiulus californicus (McGregor)(Acari: Phytoseiidae)

Kawashima

Adachi

Toyama

2006

Appl. Entomol. Zool.

View full text Add to dashboard Cite

In order to develop an artificial habitat encouraging the colonization efficiency of phytoseiid mites on fruit trees, we conducted choice experiments with a predacious phytoseiid mite, Neoseiulus californicus, using 22 types of artificial microstructures (3 cmϫ3 cm, less than 1 cm thick) in the laboratory. Large numbers of N. californicus preferred finetextured urethane foam and a shading net, although the locations where N. californicus settled on each microstructure were different: more than 80% of N. californicus adults preferred being 'on a plastic board under fine-textured urethane foam', while more than 95% preferred being 'on and in the shading net itself'. With respect to their practical use on fruit trees, shading nets are useful, because their size and thickness can be changed easily and they are also effective tools to transfer phytoseiid mites to trees with low phytoseiid densities. Thus, shading nets were considered to be the best candidate for an artificial habitat of phytoseiid mites on fruit trees.

show abstract

“…The main difficulty is a lack of acaricides effective against the pest mites, European red mite, Panonychus ulmi (Koch) and two-spotted mite, Tetranychus urticae Koch. This is a result of several factors including the withdrawal of the organotin acaricides, cyhexatin and azocyclotin, from Australia in 1987, resistance in T. urticae to most of the older acaricides (Unwin 1973) and to the organotins (Edge and James, 1986) and high levels of resistance to the ovicides, clofentezine and hexythiazox, in T. urticae (Herron et al, 1993) and P. ulmi (Thwaite, 1991).…”

Section: Introductionmentioning

confidence: 99%

Tebufenpyrad: compatibility with integrated mite control on apples

et al. 1996

View full text Add to dashboard Cite

Successful integrated mite control (IMC) depends on the availability of acaricides which act selectively on pest mites with minimal effects on predators. Laboratory bioassays of tebufenpyrad against adult female Panonychus ulmi (Koch) provided baseline toxicity data and showed it to be highly active. Bioassays also showed tebufenpyrad was toxic to the predatory mite Typhlodromus pyri Scheuten but it was approximately 70 times less toxic to the predators than to P. ulmi at the LC50. Field trials using four concentrations of tebufenpyrad (10, 7.5, 5 and 2.5 g a.i./100 1) confirmed it was selectively more toxic to the pest mites than to predators and showed that it is compatible with IMC. It is suggested that a concentration of 5 g a.i./100 1 would be suitable for IMC. A resistance management strategy for tebufenpyrad is proposed.

show abstract

Clofentezine and hexythiazox resistance in Tetranychus urticae Koch in Australia

Cited by 64 publications

References 8 publications

Clofentezine toxicity and fate in the bulb mite Rhizoglyphus echinopus (Acari: Acaridae)

Clofentezine toxicity and fate in the bulb mite Rhizoglyphus echinopus (Acari: Acaridae)

Artificial microstructure encouraging the colonization of the predacious mite, Neoseiulus californicus (McGregor)(Acari: Phytoseiidae)

Tebufenpyrad: compatibility with integrated mite control on apples

Contact Info

Product

Resources

About