Mycorrhizae..can I get more bang for my $$$?

[RayR]

Originally Posted by hoefarmer

I drenched my tomatoes and peppers yesterday morning with Great White Mycorrhizae. Last night we got 1.25" of rain. Should I reapply? My soil is very sandy.

Well you're not growing in pure sand, you do have some silt, clay and organic matter in there also and your plants are at a mature fruiting stage? That's lot of rain and some spores may washed down further into the soil profile, but some would also get caught up in the root mass . There's a whole lot of bacterial and fungal spores in a gram of Great White and it doesn't take a lot to get colonization going. I wouldn't worry about it now, reapply in a week or 2 just as insurance.
I understand if this is the first time you've inoculated, but doing inoculation at seed starting or as young seedlings is a good idea. The organic glues that fungi and bacteria make will stick those sand grains together which will improve soil structure and water retention.