Guy from El Paso, Texas writes
It is flowering now and I understand that is the best time to treat. I need to know what to treat it with, how to mix and with what, and application. I bought a backpack sprayer which may be overkill. As the summer progresses the infestation gets worse especially when the rainy season hits here in July and August. I am also concerned because I have 4 fruit trees in the backyard and the front I have an Arizona Ash which is away and up from where the nightshade is. Thanks for your help.
Most master gardeners agree that the best treatment for Silverleaf Nightshade in residential lawns is to use a non-selective glyphosate product, such as KillzAll Weed and Grass Killer. KillzAll will kill just about any plant it is sprayed on so we would recommend performing spot treatments in your lawn and then reseed. You would mix 2.5 oz. per gallon of water (1 gallon treats approx. 300 sq. ft.) Repeat applications may be necessary for complete control.
Answer last updated on: 06/16/2016
