symm /sɪm/ noun · biological input

Symbiotic microbes supporting crop yield and soil health.

Chemical-free Pesticide-free OMRI listed
Untreated
0 defense system
Treated
+15% yield increase
yield/ root vigor/ stress resilience/ nutrient efficiency/ soil health

Two inputs. One program.

Below the surface

Shield

Root-zone resilience

A steadier root environment that holds up under stress, so the plant isn't carrying the load alone.

Above the surface

Boost

Nutrient use efficiency

Stronger uptake and steadier growth — yield that reflects the strength built below.

OMRI
Listed · US organic
Made in USA
Produced domestically
Every batch
Live count tested
50+ crops
Field data on file

More yield. Less stress.

info@cropdefense.com · (845) 393-9539© 2026 Symm