Osmia californica cocoons

Osmia californica cocoons

Osmia californica cocoons are yellowish with bright orange frass (fecal pellets) Osmia californica cocoons

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Osmia californica - Richard W. Rust

Osmia californica – Richard W. Rust

The Wasmann Journal of Biology  (Vol 32 no 1 1974) has an excellent article on a variety of bee species including Osmia californica.  It includes range maps…

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Pests of mason bees- in colour

Pests of mason bees- in colour

This is a great link to view coloured photos of mason bees pests. Link to coloured photos of mason bee pests

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Osmia californica bee photos

Osmia californica bee photos

Finding anything written about Osmia californica is not easy.  Although I found an article written on californica by M. D. Levin, his scientific article was…

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Amsterdam Nursery Mason Bee Harvesting Workshop-with Dr. Margriet Dogterom

Amsterdam Nursery Mason Bee Harvesting Workshop-with Dr. Margriet Dogterom

This free workshop is a great way to harvest your mason bee cocoons and learn about this fascinating hobby.  More than 50 people have already…

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Seattle Tree Fruit Society and a key to Identify Apple Varieties

Seattle Tree Fruit Society and a key to Identify Apple Varieties

The Seattle Tree Fruit Society are putting together a great Key to identify apple varieties.  This link will take you directly to the place where…

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