Gardening columnist Don Kinzler identifies a yellow plant that has flourished here in recent years and writes about the causes of yellow tops on tomatoes and how to treat quackgrass. Reader Lance W.

NY State IPM Program at Cornell University/Flickr/CC BY 2.0 Even if you didn't know its quirky name, you have likely seen quackgrass in your yard, whether on the lawn or garden. This creeping weed is ...

Under greenhouse conditions, approximately 50% visible control of bermudagrass [Cynodon dactylon (L.) Pers. # CYNDA], quackgrass [Agropyron repens (L.) Beauv. # AGRRE], and wirestem muhly ...

Sixteen field tests conducted over 12 years showed that, under the soil and climatic conditions prevailing in the Peace River region of western Canada, application of maximum rates of 20 lb/A of 2, ...