joel siegel usda/ars: what happened and try to avoid this...
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![Page 1: Joel Siegel USDA/ARS: What happened and try to avoid this ...cestanislaus.ucanr.edu/files/161799.pdf2 mph, PTO 200 gal/ac vs Engine Driven 150 gal/ac, Large Almonds, Fresno County](https://reader033.vdocuments.us/reader033/viewer/2022060508/5f2371081c712678a22fbc1d/html5/thumbnails/1.jpg)
Joel Siegel USDA/ARS: What happened and try to avoid this next year
![Page 2: Joel Siegel USDA/ARS: What happened and try to avoid this ...cestanislaus.ucanr.edu/files/161799.pdf2 mph, PTO 200 gal/ac vs Engine Driven 150 gal/ac, Large Almonds, Fresno County](https://reader033.vdocuments.us/reader033/viewer/2022060508/5f2371081c712678a22fbc1d/html5/thumbnails/2.jpg)
![Page 3: Joel Siegel USDA/ARS: What happened and try to avoid this ...cestanislaus.ucanr.edu/files/161799.pdf2 mph, PTO 200 gal/ac vs Engine Driven 150 gal/ac, Large Almonds, Fresno County](https://reader033.vdocuments.us/reader033/viewer/2022060508/5f2371081c712678a22fbc1d/html5/thumbnails/3.jpg)
![Page 4: Joel Siegel USDA/ARS: What happened and try to avoid this ...cestanislaus.ucanr.edu/files/161799.pdf2 mph, PTO 200 gal/ac vs Engine Driven 150 gal/ac, Large Almonds, Fresno County](https://reader033.vdocuments.us/reader033/viewer/2022060508/5f2371081c712678a22fbc1d/html5/thumbnails/4.jpg)
![Page 5: Joel Siegel USDA/ARS: What happened and try to avoid this ...cestanislaus.ucanr.edu/files/161799.pdf2 mph, PTO 200 gal/ac vs Engine Driven 150 gal/ac, Large Almonds, Fresno County](https://reader033.vdocuments.us/reader033/viewer/2022060508/5f2371081c712678a22fbc1d/html5/thumbnails/5.jpg)
![Page 6: Joel Siegel USDA/ARS: What happened and try to avoid this ...cestanislaus.ucanr.edu/files/161799.pdf2 mph, PTO 200 gal/ac vs Engine Driven 150 gal/ac, Large Almonds, Fresno County](https://reader033.vdocuments.us/reader033/viewer/2022060508/5f2371081c712678a22fbc1d/html5/thumbnails/6.jpg)
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Degree Days °F from January 1
Mal
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Madera CMIS 145 through Feb 13 Year Degree Days
2007* 38.5 2008 29.5 2009 59.2 2010 23.4 2011 34.1
2012* 59.5 2013 16.9
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Almonds: Nonpareil Overwintering 2012
Date Infestation Nuts DEC. 13 29.14% 3,688 DEC. 20 13.17% 3,819 JAN. 5 25.34% 2,829 JAN. 27 17.33% 6,367 MAR. 3 12.65% 2,165
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Mummy Type
Date Infestation per Mummy
Total Sample
FIG Nov 30 39.48% 1,155 Jan 8 17.45% 871 Jan 24 18.38% 1,719 Feb 7 21.69% 1,277
Almond-NP Jan 15 30.54% 2,832 Jan 31 21.09% 3,106
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![Page 16: Joel Siegel USDA/ARS: What happened and try to avoid this ...cestanislaus.ucanr.edu/files/161799.pdf2 mph, PTO 200 gal/ac vs Engine Driven 150 gal/ac, Large Almonds, Fresno County](https://reader033.vdocuments.us/reader033/viewer/2022060508/5f2371081c712678a22fbc1d/html5/thumbnails/16.jpg)
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4 Year study, 10 acre plots 2,596,008 kernels graded
19,200 acres and 15,360 trees
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Tree Mummies Average Tree Mummies
Percent Damage
Plots
0 1.63 605 0.01 - 0.49 1.22 1,092
0.5 - 0.69 1.57 91 0.7 - 0.79 2.32 39 0.8 - 1.75 3.53 61 Greater than or equal to 1.76
7.85
44
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Ground Mummies
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Conclusions
•Tree mummy threshold as low as 0.2 per tree
•Ground mummy threshold as low as 4 per tree
•Pistachio Effect extends three miles
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Variety Percent Infested Nut
Nuts Examined
Nonpareil 54.65 1,246 (6,952)
Butte 57.33 307 (4,084)
Padre 25.00 220 (6,045)
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Treatment Mortality Eggs Intrepid 16 oz/acre 99.78% 920
Altacor 4 oz/acre 99.80% 500
Delegate 6.2 oz/acre 99.20% 250
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Treatment Mortality Eggs Intrepid 16 oz/acre 99.25% 2,000
Altacor 4 oz/acre 97.50% 2,000
Delegate 6.2 oz/acre 91.85% 2,000
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Days Post Spray Mortality Reduction
1 (17-20 ft)
98.94%A 96.93%
1 (5-7 ft)
98.42%A 97.21%
14 (17-20 ft)
91.50%B NA
14 (5-7 ft)
96.20%C NA
PTO, 100 gpa, Altacor at 4 oz/ac
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Thank You
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Degree Days°F since Jan 1
Almonds Madera 2010: Block 12-16
OCT AUG JUL JUN SEP MAY
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PTO, 2 mph, 200 gal/acre, Large Almonds, Fresno County
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Treatment Hours Mortality Adults
Altacor (3.5oz)
24 32.46% 114
48 46.67% 120 72 65.83% 120
Control 32.23% 121 Delegate (6.2 oz)
24 66.67% 123
48 83.33% 120 72 98.33% 120
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