Lindsey from Northern California writes
We are currently having nightly frost and the next morning the plants(large patches of short weeds and grass) I want to kill are damp. Can I still mix and spray as normal?
You are more than welcome to spray the roundup on the plants while they are still damp, just make sure no rain will occur within the next few hours that could potentially wash it away. Also, keep in mind that weeds and grasses have to normally be in an actively growing state (this means consistent temperatures over 65 for several days) to absorb any sort of nutrient into their system. This means if they are not allowing things into the plant system since its in a dormant state, you may not see full results when spraying this time of year even with a product like RoundUp.
Answer last updated on: 01/04/2015
