We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Effect of Hexythiazox 5.45 EC on Developmental Stages of Oligonychus biharensis Hirst and Tetranychus urticae Koch (Acari: Tetranychidae).
- Authors
Venugopal, Sheela; Sivasubramanian, P.; Krishnamoorthy, S. V.
- Abstract
The effect of the acaricide, hexythiazox 5.45 EC, known for its activity against eggs, and immature stages of spider mites, was evaluated in the laboratory against Tetranychus urticae Koch and Oligonychus biharensis Hirst, infesting grapes. O.biharensis was more susceptible than T.urticae. Hexythiazox 5.45 EC was highly effective against eggs of O.biharensis resulting in zero per cent egg hatch at 10 ppm itself on freshly laid eggs while in T.urticae zero per cent egg hatch occurred at 30 ppm only. The per cent egg hatch in untreated control ranged between 80.9 and 88.4 for different age groups of O.biharensis and T.urticae eggs. Toxicity on eggs depended on the age of eggs, freshly laid eggs being highly susceptible. Similar effects were observed in protonymphs also with more than 80 per cent mortality on the first day of treatment in O.biharensis and T.urticae, when leaf discs were treated at 30 ppm using spray method.
- Subjects
HEXYTHIAZOX; TWO-spotted spider mite; SPIDER mites
- Publication
Madras Agricultural Journal, 2013, Vol 100, Issue 7-9, p756
- ISSN
0024-9602
- Publication type
Article