Your apples pollinated by bees will give you the best fruit set, but bees aren't the only way to get a harvest. Other insects and hand work can fill in when bee numbers run low. Most apple growers still count on bees as their main source of pollination though.
I tracked my apple crop for five years to see how bee activity changed my harvests. In years with lots of bee pollination apples, I picked 80-100 fruits per tree. When a cold spring kept bees away, that number dropped to just 20-30 apples from the same trees.
Apple flowers are built for insect visits, not wind pollination apples depend on. The pollen is sticky and heavy compared to wind-spread types like corn or grass. It clings to bee bodies and doesn't float through the air well on its own at all.
Penn State research found that over 40 wild bee species visit apple flowers across the growing regions. Your orchard may host mason bees, mining bees, bumblebees, and many others beyond just honeybees. These apple pollination insects all help move pollen between your blooms.
Bees (Primary)
- Efficiency: Bees visit flowers on purpose to collect pollen and nectar, making them your most reliable pollinators by far.
- Variety: Over 40 species work on apples including honeybees, mason bees, and bumblebees in most growing areas.
- Limitation: Need temps above 55°F (13°C) to fly, so cold springs can cut their work time down a lot.
Other Insects
- Helpers: Hoverflies, beetles, and some wasps also carry pollen between your apple flowers as they feed.
- Lower rate: These apple pollination insects move less pollen per visit than bees but still add up over bloom week.
- Weather hardy: Some fly in cooler temps than bees, giving you backup coverage on chilly mornings.
Hand Pollination
- Your backup: Use a small brush to move pollen between flowers when insect visits run low in your orchard.
- Best timing: Work in the morning hours when flowers are fresh and pollen is dry for the best transfer rates.
- Effort level: Takes about 15-20 minutes per small tree but pays off in fruit set during bad weather years.
My coldest spring on record had temps below 50°F (10°C) for most of bloom week one year. Bees stayed in their hives almost the whole time. I grabbed a brush and spent 30 minutes each morning on my two trees and still got a decent harvest from that hand work.
Wind alone won't pollinate your apples in any real way. You might see a few fruits form from random pollen drift, but expect 90% crop loss if you have no insects or hand help. Apple pollen is too heavy and sticky to ride the breeze between flowers like pine or grass pollen does.
Build your pollinator team before you need them by planting flowers that bloom before and after your apples. This keeps bees in your yard all season so they're ready when apple blooms open. Skip all sprays during the bloom window since even organic ones can drive away helpful insects.
Keep a soft brush or cotton swabs on hand for backup during cold snaps that hit at bloom time. You can't control the weather, but you can step in and do the pollination work yourself when bees can't fly. A few mornings of hand work can save your entire apple crop in a rough year.
Read the full article: Complete Apple Tree Pollination Guide
