Biocontrol of Two-spotted Spider Mite Tetranychus urticae on Dwarf Hops by the Phytoseiid Mites Phytoseiulus persimilis and Neoseiulus californicus

2003 ◽  
Vol 13 (3) ◽  
pp. 275-284 ◽  
Author(s):  
A. Barber ◽  
C. A. M. Campbell ◽  
H. Crane ◽  
R. Lilley ◽  
E. Tregidga
Keyword(s):  
Tetranychus Urticae ◽  
Spider Mite ◽  
Phytoseiulus Persimilis ◽  
Neoseiulus Californicus ◽  
Phytoseiid Mites ◽  
Two Spotted Spider Mite

Phytoseiid mites (Acari: Phytoseiidae) from Chile, with descriptions of three new species and a redescription of Chileseius camposi

Zootaxa ◽  
2018 ◽  
Vol 4482 (2) ◽  
pp. 322
Author(s):  
R. D. TRINCADO ◽  
J. P. I. MARTIN ◽  
D. D. MÉNDEZ ROSA ◽  
P. C. LOPES ◽  
G. J. DE MORAES
Keyword(s):  
Biological Control ◽  
New Species ◽  
Tetranychus Urticae ◽  
Spider Mite ◽  
Phytoseiulus Persimilis ◽  
Phytoseiid Mites ◽  
Three New Species ◽  
Two Spotted Spider Mite ◽  
Amblyseius Herbicolus ◽  
Tetranychus Urticae Koch

A total of 40 phytoseiid species has been reported from Chile, including the two species (Neoseiulus californicus (McGregor) and Phytoseiulus persimilis (Athias-Henriot) most widely used worldwide for the biological control of the two-spotted spider mite, Tetranychus urticae Koch (Tetranychidae). In this paper we report nine other species found in new collecting conducted since 1989, including three new species: Amblyseius herbicolus (Chant), Amblyseius tamatavensis Blommers, Arrenoseius robertogonzalezi Trincado & Martin n. sp., Neoseiulus anonymus (Chant & Baker), Neoseiulus bicaudus (Wainstein), Neoseiulus viticolus Trincado & Martin n. sp., Metaseiulus (Metaseiulus) camelliae (Chant & Yoshida-Shaul), Metaseiulus (Metaseiulus) neoflumenis Moraes & Kreiter and Metaseiulus (Metaseiulus) relictus Trincado & Martin n. sp.. Chileseius camposi Gonzalez & Schuster, 1962 is redescribed, and a list of all species presently known from Chile and a key to help in their separation are given. A new name, Proprioseiopsis kargi Trincado nom. nov., is a replacement name for Proprioseiopsis globosus Karg, 1976, a junior homonym of Proprioseiopsis globosus (Gonzalez & Schuster, 1962). 

scholarly journals 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

2020 ◽  
Vol 11 (1) ◽  
pp. 118
Author(s):  
Matej Vidrih ◽  
Anja Turnšek ◽  
Magda Rak Cizej ◽  
Tanja Bohinc ◽  
Stanislav Trdan
Keyword(s):  
Tetranychus Urticae ◽  
Spider Mite ◽  
Biological Control Agent ◽  
Spider Mites ◽  
Predatory Mite ◽  
Control Agent ◽  
Neoseiulus Californicus ◽  
Future Research ◽  
Starting Point ◽  
Two Spotted Spider Mite

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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