Toxicity of Carbaryl and Six Organophosphorus Insecticides to Amblyseius fallacis and Typhlodromus pyri1 from New York Apple Orchards 2 , 3

1976 ◽  
Vol 5 (2) ◽  
pp. 368-370 ◽  
Author(s):  
C. M. Watve ◽  
S. E. Lienk
Keyword(s):  
New York ◽  
Apple Orchards ◽  
Organophosphorus Insecticides ◽  
Amblyseius Fallacis

A SURVEY OF PREDATORY MITES IN ONTARIO APPLE ORCHARDS WITH DIVERSE PESTICIDE PROGRAMS

1991 ◽  
Vol 123 (6) ◽  
pp. 1163-1174 ◽  
Author(s):  
H.M.A. Thistlewood
Keyword(s):  
Predatory Mites ◽  
Apple Orchards ◽  
Amblyseius Fallacis ◽  
Phyllonorycter Blancardella ◽  
Zetzellia Mali

AbstractLeaves were collected between 28 July and 10 September from 36 (1986) and 85 (1987) apple orchards, and examined for mites. Twelve species of Phytoseiidae were found: Amblyseius fallacis (Garman), Typhlodromus longipilus Nesbitt, A. andersoni (Chant), T. caudiglans Schuster, T. pyri Scheuten, T. pomi (Parrott), Phytoseius macropilis (Banks), T. herbertae Chant, A. driggeri Specht, A. finlandicus (Oudemans), T. conspicuus (Garman), and A. pusillus (Kennett), in order of frequency. The stigmaeid mites Zetzellia mali (Ewing) and Agistemus fleschneri Summers, a complex of erythraeid mites of Balaustium spp. and Hauptmannia spp., and tydeid mites, primarily Tydeus spp., were other common predatory species. Species of Tetranychidae, Bdellidae, Eriophyidae, Winterschmidtiidae, and Tarsonemidae, also were collected.Predatory mites were present each season in all abandoned orchards and in 43–74% of the commercial orchards. Their abundance in commercial orchards was compared with the use of insecticides applied only for control of the spotted tentiform leafminer, Phyllonorycter blancardella (Fabr.). Fewer (P < 0.05) phytoseiids occurred where pyrethroids were employed than in sites without pyrethroids, but differences were not found for similar use of the carbamoyl oxime, methomyl. Fewer (P < 0.05) stigmaeids occurred in sites treated with methomyl than in sites without methomyl, whereas such differences were not found for pyrethroid use.

AN INTEGRATED PEST MANAGEMENT PROGRAM FOR APPLE ORCHARDS IN SOUTHWESTERN QUEBEC,

1986 ◽  
Vol 118 (11) ◽  
pp. 1131-1142 ◽  
Author(s):  
N.J. Bostanian ◽  
L.J. Coulombe
Keyword(s):  
Pest Control ◽  
Venturia Inaequalis ◽  
Management Program ◽  
Lygus Lineolaris ◽  
Rhagoletis Pomonella ◽  
Apple Orchards ◽  
Conotrachelus Nenuphar ◽  
Amblyseius Fallacis ◽  
Spring Frosts ◽  
The Cost

AbstractAn IPM program was developed to control Venturia inaequalis (Cke.) Wint., Lygus lineolaris (Palisot de Beaiivois), Conotrachelus nenuphar (Herbst), and Rhagoletis pomonella (Walsh), the annual key pests of apple orchards in southwestern Quebec. The program was found to control other pests, such as Orthosia hibisci (Guenée). Phytophagous tetranychids were controlled with the introduction of an organophosphate-resistant strain of Amblyseius fallacis Garman, Key pests were monitored carefully and pesticide applications were timed to correspond to their presence in the orchard. After an extremely severe winter and late spring frosts, the IPM program failed to provide commercially acceptable pest control. A measure to correct this problem is suggested in the text. This program reduced the cost of pesticide treatments by 34% when compared with pest control practices currently used by commercial growers in Quebec.

scholarly journals Trap Response and Fruit Damage by Obliquebanded Leafroller (Lepidoptera: Tortricidae) in Pheromone-Treated Apple Orchards in New York

1996 ◽  
Vol 25 (2) ◽  
pp. 268-282 ◽  
Author(s):  
Arthur M. Agnello ◽  
W. Harvey Reissig ◽  
Steve M. Spangler ◽  
Ralph E. Charlton ◽  
David P. Kain
Keyword(s):  
New York ◽  
Apple Orchards ◽  
Obliquebanded Leafroller ◽  
Fruit Damage ◽  
Treated Apple

scholarly journals Multi-site Thinning Comparisons with `Empire' and `McIntosh' Apples

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 524C-524
Author(s):  
Alan N. Lakso ◽  
Terence L. Robinson ◽  
Eddie W. Stover ◽  
Warren C. Stiles ◽  
Stephen Hoying ◽  
...  
Keyword(s):  
New York ◽  
New York State ◽  
Fruit Size ◽  
Apple Orchards ◽  
Physiological Factors ◽  
Crop Load ◽  
York State ◽  
Climatic Regions ◽  
Trial Analysis ◽  
Fruit Stage

Many chemical, environmental, and physiological factors have been reported to be important to apple chemical thinning, so we have been developing a multi-site and multi-year database of chemical thinning results and potentially important factors. For 3 years, we have conducted replicated thinning trials in `Empire' and `McIntosh' apple orchards at six or seven sites around New York state in different climatic regions. Different concentrations of NAA and Accel (primarily benzyladenine), NAA/carbaryl and Accel/carbaryl combinations and unthinned controls were tested with treatments applied at the 10-mm king fruit stage by airblast sprayers. Flower cluster counts, set counts, yields, fruit sizes, and other factors thought important to thinning response (orchard condition/history, weather, application conditions, etc.) were measured or estimated in each trial. Analysis of factor importance is continuing, but some general results have come from the thinning trials so far. Thinning effectiveness varied among years from poor to adequate. There have not been consistent thinner concentration responses. Commercial NAA and Accel concentrations have not thinned adequately. NAA/carbaryl and Accel/carbaryl have thinned the most. For the same crop load, trees thinned with Accel or the carbaryl combination have had better fruit size than when thinned with NAA.

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