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How to Manage Pests
UC Pest Management Guidelines
Pear
2010 Fungicide Efficacy and
Treatment Timing
(Reviewed 3/10,
updated 5/10)
In this Guideline:
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FUNGICIDE EFFICACY FOR PEARS DISEASES
| Fungicide |
Resistance risk (FRAC#)1 |
Scab |
| Protectant |
Eradicant |
| Adament |
medium (3/11) |
++++ |
++++ |
| Bayleton |
high (3) |
---- |
---- |
| Distinguish** |
medium (9/11) |
+++ |
+++ |
| Inspire Super |
medium (3/9) |
++++ |
++++ |
| Flint2 |
high (11)3 |
++++ |
++++ |
| Pristine |
medium (11/7) |
++++ |
---- |
| Procure4 |
high (3) |
++++ |
++++ |
| Rubigan4 |
high (3) |
++++ |
++++ |
| Scala |
high (9)3 |
+++ |
+++ |
| Sovran |
high (11)3 |
+++ |
+++ |
| Syllit |
medium (M7) |
+++ |
+++ |
| Tebuzol |
high (3) |
+++ |
+++ |
| Topsin-M/T-Methyl /Thiophanate-Methyl3 |
high (1)3 |
+++ |
+++ |
| Vangard |
high (9)3 |
+++ |
+++ |
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| Ph-D* |
medium (19) |
+ |
+ |
| Captan6 |
low (M4) |
+++ |
---- |
| Maneb** |
low (M3) |
+++ |
---- |
| Thiram5 |
low (M3) |
++ |
---- |
| Ziram6 |
low (M3) |
++ |
---- |
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| Copper6 |
low (M1) |
++7 |
---- |
| Lime sulfur6,8 |
low (M2) |
---- |
++++8 |
| Sulfur7 |
low (M2) |
++ |
---- |
| Bactericide/ Biological |
Resistance risk |
Fire blight11 |
Phytotoxicity |
|
Contact |
Systemic |
| Ag Streptomycin/Agri-Mycin/Firewall |
high |
++++ |
+++ |
+/- |
| MycoShield/FireLine10/
FlameOut** |
high |
+++ |
+++ |
+/- |
| Copper7 |
low (M1) |
+++ |
---- |
+ |
| Captan6 |
low (M4) |
++ |
---- |
---- |
Dithane/Manzate/
Penncozeb6 |
low (M3) |
++ |
---- |
---- |
| Blight Ban |
low |
++ |
---- |
+/- |
| Bloomtime Bio |
low |
+++ |
---- |
+/- |
FUNGICIDE TREATMENT TIMING IN PEARS
Note: Not all indicated timings may be necessary for disease control.
| Disease |
Fall |
Delayed dormant |
Green tip |
Pink bud |
Spring |
| Scab1 |
++2 |
++2 |
+++ |
+++ |
+++ |
| Powdery mildew3 |
---- |
---- |
---- |
+++ |
+++ |
| Fire blight |
---- |
---- |
---- |
+++ |
+++4 |
Adaskaveg, J. E., B. A. Holtz, T. J. Michailides, and W. D.
Gubler. 2010. Efficacy and Timing of Fungicides, Bactericides, and Biologicals
for Deciduous Tree Fruit, Nut, Strawberry, and Vine Crops
UC IPM Pest Management Guidelines: Pear
UC ANR Publication 3455
General Information
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