CROP PROFILE / PLUM
Plum
Prunus domestica / P. salicina
BLOOMFebruary–April
REGIONSCalifornia · Pacific Northwest · Northeast
POLLINATORSHoney bees, mason bees, wild bees
MEASUREMENT
What to measure
Flower visitation → compatible pollen transfer → fruit set
WEATHER
What can go wrong
Cold, rainy conditions can reduce activity during an already compact bloom period.
DIAGNOSIS
How to troubleshoot
Check cultivar compatibility and overlap along with visitation before attributing poor set to bee shortage.
TECHNOLOGY
Relevant tools
- Bloom overlap tracking
- Weather monitoring
- Visitation surveys
- Fruit-set sampling