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Posts Tagged: fungicide
Peach Leaf Curl, Time to Spray!
If you have peach or nectarine trees that typically have distorted or reddened leaves in spring,...
What Do These Pesticide Terms Mean?
[Originally published as “Pesticide Briefs: What Do These Terms Mean?” in the Fall 2018...
Management of Anthracnose with Pre-Plant Fungicide Dip Treatments in 2016
Very nice presentation of management with pre-plant fungicidal dips of anthracnose given by Gerald Holmes of CalPoly of work he did together with Jim Adaskaveg, Doug Gubler, Stacy Haack, Helga Foerster and Kelly Ivors did earlier this year.
Look at the presentation, it's very well done. The upshot (copied directly from the concluding slide) is as follows:
1. Actinovate had NO efficacy on anthracnose in the conditions of this study.
2. Azoxystrobin (Abound) is highly effective in controlling Colletotrichum if the strain is sensitive, but not effective if the strain is resistant.
3. Switch is highly effective as a dip in controlling Colletotrichum in all the cases of this study. No phytotoxicity was detected in the conditions of this study (ie 4 minute dip with agitation, followed by 5 to 10 minutes drip drain).
4. Two new compounds, EXP-13 and Syngenta-2 (not registered yet) were found with high efficacy.
Link here:
http://content-calpoly-edu.s3.amazonaws.com/strawberry/1/documents/2016AnthracnoseUCR.pdf
2015 Update of Fungicide Efficacy including Strawberries Just Released
Just released from UC ANR updated information of fungicide efficacy in strawberries, which are on page 59.
http://www.ipm.ucanr.edu/PDF/PMG/fungicideefficacytiming.pdf
As always, you are responsible for the fungicides you apply to your field. Before using any of the products described in the handbook, check with your local Agricultural Commissioner and consult product labels for current status of product registration, restrictions and use information.
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