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Millbury, MA (Zone 5b)
Nov 14, 2015 6:38 AM CST
|Firstly, your mixture is too strong to spray directly on plants. It will burn the leaves of Hosta and other plants. Secondly, if you are suggesting using this as a soil drench, you will essentially kill all macro and micro organisms in that area, not just slugs. Lastly, while a 10% ammonia and water solution will kill slugs on contact, there is no residual effect. The soap is useless because the ammonia will evaporate from the leaves and there will be no effect on slugs that aren't directly sprayed.|
Nov 14, 2015 6:54 AM CST
|I agree with Steve. Ammonia does a good job at eliminating (or reducing) slugs, your solution is far too strong. 1 part ammonia to 10 parts water does a fine job.|
Pictures of all my hostas, updated annually and tracked since 2008 begin at: https://violaann.smugmug.com/G...
Dec 12, 2015 8:53 PM CST
|of course, you can always go back to hand picking at night with a headlamp! Now that is a safe and for sure thing and works every time!|
Feb 15, 2016 1:43 AM CST
|Well this formula is working fine for me. Haven't lost a plant yet. Do as you will.|
Walk in Peace, Walk in Light, Blessed Be!