Experimental and Applied Acarology (1998) 22, 553-558

G.A. Herron, G.A.C. Beattie, A. Kallianpur and I. Barchia (1998)
A Potter spray tower bioassay of two petroleum spray oils against adult female Panonychus ulmi (Koch) and Tetranychus urticae Koch (Acari : Tetranychidae)
Experimental and Applied Acarology 22 (9), 553-558
Abstract: A Potter spray tower was used to determine the susceptibility of adult female European red mites (Panonychus ulmi (Koch)) and two-spotted spider mites (Tetranychus urticae Koch) to suffocation by petroleum spray oils (PSOs). The LC₉₅ values calculated for P. ulmi against C23 Ampol D-C-Tron NR and C21 Caltex Lovis were 104 and 165 µg cm^-2, respectively. For T. urticae the values were 169 and 207 µg cm^-2, respectively. The results are consistent with established relationships between PSO efficacy and increasing PSO molecular weight. The results are discussed in relation to previously reported bioassays on spider mites and to concurrent evaluations of PSOs for use in pome fruit integrated pest management programmes in Australia.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Grant A. Herron, George Andrew Charles Beattie

Research topic(s) for pests/diseases/weeds:
control - general

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Panonychus ulmi
	Tetranychus urticae