Because bean varieties vary in their resistance to herbicides, chemical companies will invariably make a safety commitment only on popular bean varieties planted on a large scale, and these are invariably dry bean varieties. No herbicide manufacturer would want to face claims of damage to a new green bean variety.
CONDUCT YOUR OWN SMALL-SCALE TESTS
Fortunately, it’s not difficult to carry out your own small-scale trials of a particular herbicide.
Dual worked very well for me as a pre-emergence product. There are a number of related products to choose from; ask your crop protection representative for details.
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November 29, 2019