there a growth retardant spray suitable for grass growing around
native trees and fruit tree seedlings?
there are a few growth retardants used in commercial horticulture
for a variety of crops, I know of none widely available for retarding
grass growth and, if there were, applying them around young seedlings
could be risky.
One of the best ways
to suppress grass growth in this situation is to cover it with mulch.
You could use compost, sawdust, wood chips or the likes, perhaps
with a layer of newspaper first on top of the grass. Or, if practicable,
mow with a weedeater or lawn mower, or use a weedkiller to knock
the grass down, but make sure to avoid getting spray on the native
trees and seedlings. You can make a useful shield by cutting the
bottom from a large soft drink bottle, so the bottle fits over the
seedling to protect it from spray.
Gardener, Issue 184, 2005, Page 33
Reproduced with permission from the former Weekend Gardener magazine. The views expressed here are not necessarily those of the RNZIH.