Monday, 18 July 2011
Sunflowers are in the sun and in flower
Should we spray a fungicide against sclerotinia and botrytis?
Many are recommending that we do; my feeling is that it is unrealistic to expect a few grams of active to penetrate and translocate through such a large plant to do any good.
Also the average yield for nine of the top producers in Ukraine was 2.3MT/HA over the last two years with a range from 2.1 to 2.6MT/HA.
I just can’t see applying $60 to $70 worth of chemicals at this stage will be economic.
I would appreciate any thoughts from those who have been growing SF for longer that I have, drop me a line at Agronomy.email@example.com