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Insects 2017, 8(3), 96; doi:10.3390/insects8030096

Comparative Programs for Arthropod, Disease and Weed Management in New York Organic Apples

1
Department of Entomology, New York State Agricultural Experiment Station, Cornell University, Geneva, NY 14456, USA
2
Plant Pathology and Plant-Microbe Biology Section, School of Integrative Plant Science, New York State Agricultural Experiment Station, Cornell University, Geneva, NY 14456, USA
3
Horticulture Section, School of Integrative Plant Science, New York State Agricultural Experiment Station, Cornell University, Geneva, NY 14456, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Alberto Pozzebon, Carlo Duso, Gregory M. Loeb and Geoff M. Gurr
Received: 31 July 2017 / Revised: 22 August 2017 / Accepted: 1 September 2017 / Published: 4 September 2017
(This article belongs to the Special Issue Arthropod Pest Control in Orchards and Vineyards)
View Full-Text   |   Download PDF [990 KB, uploaded 5 September 2017]   |  

Abstract

Organic apple production in the eastern US is small and is mostly based on existing varieties, which are susceptible to scab, and rootstocks, which are susceptible to fire blight. This requires numerous sprays per year of various pesticides to produce acceptable fruit. From 2014 to 2016, we tested different arthropod, disease and weed management programs in an advanced tall spindle high-density production system that included disease-resistant cultivars and rootstocks, in an organic research planting of apples in Geneva, New York. Arthropod and disease management regimens were characterized as Advanced Organic, Minimal Organic, or Untreated Control. Results varied by year and variety, but, in general, the Advanced program was more effective than the Minimal program in preventing damage from internal-feeding Lepidoptera, plum curculio, and obliquebanded leafroller, and less effective than the Minimal program against damage by foliar insects. Both organic programs provided comparable control of sooty blotch, cedar apple rust, and fire blight, with some variability across cultivars and years. The advanced selection CC1009 and Modi seemed to possess complete resistance to cedar apple rust, while Pristine had partial resistance. For weed control, bark chip mulch, organic soap sprays, and limonene sprays tended to be most effective, while mechanical tillage and flame weeding had lower success. View Full-Text
Keywords: high density; tall slender spindle; disease-resistant varieties; spinosad; azadirachtin; Bacillus thuringiensis; copper octanoate; Bacillus amyloliquefaciens; bark chip mulch; limonene high density; tall slender spindle; disease-resistant varieties; spinosad; azadirachtin; Bacillus thuringiensis; copper octanoate; Bacillus amyloliquefaciens; bark chip mulch; limonene
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Agnello, A.; Cox, K.; Lordan, J.; Francescatto, P.; Robinson, T. Comparative Programs for Arthropod, Disease and Weed Management in New York Organic Apples. Insects 2017, 8, 96.

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