Pollinator ProgramPeter Brastow, Biodiversity

Chris Geiger, Integrated Pest Management

Dependence on pollinators

CC BY-SA 3.0 NY

Honeybees

44% of colonies lost

44% lost

Native bees

Long term pollinator decline

Long term pollinator decline

24%

Causes?

Pollinator declineParasites

Viruses

Insecticides, fungicides Weather

Habitat loss

Cultural techniques

Pollinators Program

Bay Friendly Landscaping

Before and after

Credit: California Bee-Friendly Garden Recipes. ANR Publication 8518.

Less-toxic pest control

San Francisco Plant Finder

Pollinator-friendly plants

470 plant species

DPW Street Parks Program

Green hairstreak butterfly

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35 species of breeding butterflies

One year later – green hairstreak habitat

Thank you!

Thank you!