Slide1 : Organic Apple Production Disease Management James W. Travis - Professor of Plant Pathology
Noemi O. Halbrendt – Research Associate
Brian L. Lehman – Research Assistant
FREC Tech Service / Terry Salada - Farm Manager
Victor Fluke, Summer Chronister, Andrea Luquette, Alison Group,
Dillon Guise, Emily Lobaugh – Summer Research Assistants
Jean Morris, Karen Weaver , Kathy Wholaver – Staff Assistants
Milton Loyer - Statistician
Fruit Research & Extension Center, PSU, Biglerville, PA
PSU Main Campus Cooperators
Paul Backman – Prof. of Plant Pathology
Tim McNellis – Assoc. Prof., Plant Pathology
Maria Jimenez Gasco - Asst. Prof., Plant Pathology
Jo Rytter – Research Support Assistant
Anissa Demers - Graduate Student
Steve Andrew Lee - Graduate Student
2006 Organic Fungicide Program University Drive Orchard PSU FREC Biglerville, PA ’Rome Beauty’ - ’G. Delicious’ –’R. Del.’ : 2006 Organic Fungicide Program University Drive Orchard PSU FREC Biglerville, PA ’Rome Beauty’ - ’G. Delicious’ –’R. Del.’
Treatment & Rate/A Timing
1. Nontreated CK
2. Cham. Cu WP 1 lb 1/4G
Citrex 8 oz P-H
3. Cham. Cu WP 1 lb 1/4G
Citrex 8 oz +
Micro Sulf 15 lb P-H
4. Cham. Cu WP 1 lb 1/4GT
Micro Sulf 15 lb P-H
5. Cham. Cu WP 1 lb 1/4 GT
Micro Sulf 15 lb P-B
Lime Sulfur 2% +
JMS Oil 2% PF
MicroSulf 15 lb 1C-H
Treatment & Rate/A Timing
6. Cham. Cu WP 1 lb 1/4 GT
EF-400 OM 32 oz P-H
7. Cham. Cu WP 1 lb 1/4 GT
EF-400 OM 32 oz
Rot. w/ Micro Sulf 15 lb P-H
8. Cham. Cu WP 1 lb 1/4 GT
Lime Sulfur 1.5% + P-B
Lime Sulfur 2.0 % +
JMS Oil 2% PF
Lime Sulfur 1.0% 14 da 1C-H
9. Cham. Cu WP 1 lb 1/4GT
Micro Sulf 15 lb +
Vigor Cal 1 gal P-H
Slide3 : cd** c b ab ab d ab a ab * Three apple cvs., Rome, R. Del., and G. Del.
** Means marked with the same letter(s) are not significantly different, Fisher’s Protected LSD, P < 0.05. 2006 Incidence of Apple Scab
on Shoots of 3 Apple Cultivars*
Dilute Sprays – (20 June 2006)
Slide4 : c** b a a a c * Three apple cvs., Rome, R. Del., and G. Del.
** Means marked with the same letter(s) are not significantly different, Fisher’s Protected LSD, P < 0.05. a a a 2006 Severity of Apple Scab on Fruit of 3 Apple Cultivars*
Dilute Sprays – (20 June 2006)
Slide5 : * Three apple cvs., Rome, R. Del., and G. Del.
** Means marked with the same letter(s) are not significantly different, Fisher’s Protected LSD, P < 0.05. d** bc a a ab cd a ab ab 2006 Incidence of Powdery Mildew on Shoots of 3 Apple Cultivars*
Dilute Sprays – (20 June 2006)
Slide6 : * Three apple cvs., Rome, R. Del., and G. Del.
** Means marked with the same letter(s) are not significantly different, Fisher’s Protected LSD, P < 0.05. b** a a a a a a a a 2006 Incidence of Cedar Apple Rust
on Shoots of 3 Apple Cultivars*
Dilute Sprays – (20 June 2006)
Slide7 : * Three apple cvs., Rome, R. Del., and G. Del.
** Means marked with the same letter(s) are not significantly different, Fisher’s Protected LSD, P < 0.05. c** ab a ab abc a bc a a 2006 Incidence of Cedar Apple Rust
on Fruit of 3 Apple Cultivars*
Dilute Sprays – (20 June 2006)
2005 Organic & Alternative Trials: Scab Incidence on G .Delicious : 2005 Organic & Alternative Trials: Scab Incidence on G .Delicious
1. Micro Sulf 15 lb
2. Lime Sulfur 2%, LS 1%
3. Armicarb 5lb+ JMS Oil 2%
4. Serenade 4lb + Nufilm 0.5% 5. LS 2%, 1% + VCP*N.Org.
6. Standard Fung. Ck
7. Vigor-Ca-Cu Phos*N.Org.
8. Water Ck % Incidence on Shoot Leaves % Incidence on Fruits
2005 Fly Speck & Sooty Blotch on ‘G. Delicious’ Dilute Sprays : 2005 Fly Speck & Sooty Blotch on ‘G. Delicious’ Dilute Sprays Treatments
1. Micro Sulf 15 lb
2. Lime Sulfur 2%, LS 1%
3. Armicarb 5lb+ JMS Oil 2%
4. Serenade 4lb + Nufilm 0.5%
5. LS 2%, 1% + VCP*N.Org.
6. Standard Fung. Ck
7. Vigor-Ca-Cu Phos*N.Org.
8. Water Ck
Slide10 : 2005 Fruit Rot Incidence – Harvest
‘Golden Delicious’ Treatments
1. Micro Sulf 15 lb
2. Lime Sulfur 2%, LS 1%
3. Armicarb 5lb+ JMS Oil 2%
4. Serenade 4lb + Nufilm 0.5%
5. LS 2%, 1% + VCP*N.Org.
6. Standard Fung. Ck
7. Vigor-Ca-Cu Phos*N.Org.
8. Water Ck 1 2 3 4 5 6 7 8
Treatments % rot incidence
Slide11 : 2005 Fruit Rot Incidence on ‘G. Delicious’** Treatments
1. Micro Sulf 15 lb
2. Lime Sulfur 2%, LS 1%
3. Armicarb 5lb+ JMS Oil 2%
4. Serenade 4lb + Nufilm 0.5%
5. LS 2%, 1% + VCP*N.Org.
6. Standard Fung. Ck
7. Vigor-Ca-Cu Phos*N.Org.
8. Water Ck ** Travis, J.W., et. al. 2005 Alternative Fungicide Trials. Postharvest % Rot Incid. on Fruits. 1 2 3 4 5 6 7 8
Treatments
2004 Fruit Rot Incidence on ‘G. Delicious’ at Harvest* : 2004 Fruit Rot Incidence on ‘G. Delicious’ at Harvest* Treatments
Lime Sulfur (2.5%)
Champ Copper WP
Lime Sulfur (1%)
Std. Fungicide CK
Water CK
Vigor Cal +Lime Sulfur (1%) 1 2 3 4 5 6 *Travis, J.W., et. al. 2004 Alternative Fungicide Trials. % fruit incidence 8 Sept.; P < 0.5 DMRT. a a ab a bc c