Good Fruit Grower

September 2012

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Dolco Packaging Dolco Foam Apple Trays will no to allow moisture run-off in Hot/Humid climate Available in Full Line of A (48's through 125's) Eliminates the use of l NEW APPLE DRAINAGE TRAYS . . . Patented Design with built-in channels Premium Protection & Superior Delivery of your fruit to all locations. ull Line of Apple Tray Sizes es the use of laayer pads. s will now provide Figure 1 Codling moth trap catch in Dee Flat 2007 2008 2009 2010 2011 Number 136 136 136 136 105 of traps Total 2,726 1,043 155 85 11 number of codling moths Contact your DOLCO PACKAGING or HR SPINNER CORP. Sales Representative for more details. Drainage Channel 800 Drainage Outlet Codling 20.0 7.7 1.1 0.6 0.1 moths per trap SOURCE: Steve Castagnoli, Oregon State University. "If you start hanging pheromones in enough acres, it works. We've known that all along. If you do it in isolated blocks of 15 acres, it's tough to eliminate the border effects." Once his neighbors were also using mating disruption, Hunt saw his codling moth trap catches drop from 82 moths during the 2007 season to only 2 in 2009. Once codling moth populations are reduced, mating disruption can be a stand-alone control, he said. Castagnoli reports that during the 2007 season, a total of 2,726 codling moths were caught in traps in the Dee Flat area. Last season, only 11 moths were caught. The cost of a standard pear pest management pro- gram is about $900 per acre, he calculates. By year four, some growers were able to reduce the cost to about $600 per acre with no increase in fruit damage by eliminating codling moth cover sprays and late-season pear psylla and mite sprays. The fungicide mancozeb is included in the cost estimates because it is widely used for pear scab early in the season and has some effect on pear psylla. After the EPA grant expired, the Oregon Department &!)$(" &!(&)$(" >)778,%2-2',)7;-()*36 2%663;86))63;74%'-2+7 +,-$& .($-( ').(- )( (1/$&& +.(($("" + $ " "!#!"! )0)--)+ )0#.--& ).& )+% +).()" +),-( )()'1!- )$(-)+%, )$(-$$!- )(/ 1)+, + $"#-- .+(1&(*+1 +, ;;;4,-0&63;2;)0(-2+'31 PHIL BROWN WELDING CORP. ,32) • %< • ?-0) ($32/0-2-',-+%2 Introducing Vine Tech Equipment as our New Northwest Phil Brown Welding Dealer ;;;:-2)8)',)59-41)28'31 24 SEPTEMBER 2012 GOOD FRUIT GROWER >!6%'83613928)(:%0:) -7%:%-0%&0) >=(6%90-'(6-:)26300)6',%-2 *36032+71338,34)6%8-32 >"7)7)<-78-2+86%'836 ,=(6%90-'7=78)1 >(.978%&0),-8',*36(-**)6)28 (6%;&%6,)-+,87 > )%613928)(%9831%8-' &3<78348346):)2870-(-2+ of Agriculture subsidized the cost of mating disruption for the 2010 season. During the 2011 season, about 96 per- cent of the growers continued to use pheromones, even though cost-share funds were no longer available. Hunt said growers who have used mating disruption realize that overall insect control becomes cheaper. "In the first few years, when we were applying cover sprays, it was more expensive, but now it's cheaper," he said. "We don't need any inducements to do it." Organophosphates are cheap, but they put workers at risk, and the reentry intervals are getting longer, said Hunt, who believes that eliminating those pesticides is fundamentally the right thing to do. "If doing the right thing costs a little more for two to three years, you're going to do it," he said. "Now, we're getting paid back in spades." Hunt said it takes a critical mass of acreage, but it doesn't necessarily take a formal areawide program to have success with mating disruption. "If you can have cooperation with your neighbors, you don't have to have a program like this. If you have 200 acres and get together with a couple of other guys in basically the same place who have 200 acres, you have a big enough area to make it work." Orchardists are independent, and everyone wants to spray their own materials and control pests their own way, Hunt acknowledged. But the areawide project demonstrates that, with a little cooperation and organiza- tion, the benefits of working together can outweigh those of the individual approach. Hunt said that "It's a triumph of cooperation over rugged individualism." • www.goodfruit.com Building the Best Since 1964!

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