Woodleaf Farm Insect Management System Table 2

This article is part of the Woodleaf Farm Organic Systems Description.

Table 2. Pest-Specific Strategies, Biological Controls, Supplemental Pesticides, and Outcomes

Insect pest1 Disease Trend

System Design/Management strategies

Biological controls2 Off-farm inputs and supplemental pesticides

Aphids (many spp., especially Myzus persicae)

Crops: peach, plum, pluot, cherry, apple

         Embed 1 to 1.5-acre fields in native oak/pine forest and separate them with native habitat on 90% of field margins (Fig. 2: Farm Fields & Soils Map).

Plant a no-till living mulch (grass/clover/weeds) in crop row middles and interspersed beneath crop trees.

Mow selectively to increase predator and parasite populations and activity.


*Syrphids, spiders, lady beetles, soldier beetles, parasitoid wasps None

Western flower thrips (Frankliniella occidentalis)

Crop: peach

          *Banded thrips, crab spiders 

2007–2013: Spinosad (Entrust)

2014 and 2015: no pesticides applied 

Peach twig borer (Anarsia lineatella)

Crop: peach

        **Insects and birds 

1998–2005: Bt (Bacillus thuringiensis)

2006–2015: no pesticides applied 

Oriental fruit moth (Grapholitha molesta)

Crop: peach

        **Insects and birds

1998–2005: Bt (Bacillus thuringiensis)

2006–2015: no pesticides applied

Codling moth (Cydia [Laspeyresia] pomonella)

Crops: apple, pear

       **Insects and birds

1998–1999: Bt (Bacillus thuringiensis)

2000–2015 no pesticides applied

Spotted wing drosophila (Drosophila suzukii)

Crops: cherry, kiwi, peach

    No change No biological control observed

2008–2013, 2015: two or three applications of Spinosad (Entrust) on cherries only

2014: no pesticides applied

Supporting data is from spray records, farmer observations, crop monitoring records

¹For a list of common pests and their management in California, see University of California IPM Pest Management Guidelines:
• Peach: http://www.ipm.ucdavis.edu/PMG/selectnewpest.peach.html
• Apple/pear: http://www.ipm.ucdavis.edu/PMG/selectnewpest.apples.html

²*=detected feeding on or parasitizing pests; **= observed and hypothesized as control

This table is part of the Woodleaf Farm Organic Systems Description.


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Published December 31, 2015

This is an eOrganic article and was reviewed for compliance with National Organic Program regulations by members of the eOrganic community. Always check with your organic certification agency before adopting new practices or using new materials. For more information, refer to eOrganic's articles on organic certification.