Archives for category: Insects

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To get past our fear of flying insects it is important to meet them and say hello.  Insect scientists group insects into different clans.  One of the characteristics to observe is the kind of wings it has.

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Bees are grouped with the wasps and ants.  Some bees are named for their trades and the types of nests they build.  Clay and mud, wooly hairs, bits of wood, green leaves.  Bees are master builders and architects.

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How social is the bee?  Does it live in a little hole by itself, in a hole surrounded by other holes, or in a huge nest ?

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If the bee collects pollen, where does she store it as she travels to the next flower?

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How many babies in each little nursery cell?  One to many?

What sort of structure?  Is it waterproof? Who brings food to the young?

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Some bees live as parasites on other bees.  Survival and another day staring at flowers.

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Not all flowers are quick to let go of their precious pollen.  Some take just the right touch.

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One time up in the mountains I thought the earth was rumbling and granite was shaking.  Turns out it was a dead tree humming with activity.

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The ovipositor is the egg laying device that sticks out the back of the abdomen of female bees and wasps.  In some instances, It is modified into a stinger.  Poison and power, life and birth.

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Bees are awesome!

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Funny thing is, it seems that once an idea is lit up in one’s mind, it does these loops and starts to show up everywhere.  Yesterday, dreaming of bees, I came upon this scene.

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Then this:

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And here they were – at the edge of the sea.  Rock rock Rockaway Beach!  This ones in Pacifica.  2-3 foot shifty watery claws!  GO!!!!!

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 So we started working in the vegetable garden.  It was overgrown with weeds.

We were concerned that past activities had contaminated the soil.  Vegetables suck up metal ions and store them in their plant parts – roots, stems, leaves, flowers, and fruits.  If we eat these veggies in large quantities, the metals can cause our bodies big problems.

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Soil is a living force.  A handful of soil is millions and millions of creatures.

An overview of different farming styles led to discussions of philosophy and our relationship to the earth.

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Give and take, give and take.  Take naps, dream, then go back to work!

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Hey, how about a few swiss chard-eating fly larvae in the stir fry?  Protein!!

I am teaching a class about basic vegetable and herb gardening in the fall semester.  These are some notes for the students in picture form about insect pests of the garden.

Many insects we call “beneficial” because they prey on pests and keep pest populations under control.  Some “beneficials” lay eggs in the larvae of pestiferous flies and aphids, while others eat them directly with chewing mandibles.

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Sometimes, it is hard to say exactly if an insect is a friend to humans or if it is detrimental.  The relationship varies through time and changes depending on the site.  If we were to go to war to try and annihilate an entire group of insects (such as mosquitos for instance) we would likely get pretty sick ourselves and maybe end up losing.  So, we try to live with these small but powerful creatures as best as we can.

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The cabbage family of plants comprise some of our favorite vegetables.  They include the collard greens, broccoli, and kale.  I can smell the chick peas, sweet potatoes, and fried chicken already!  This family is also the “choys” of Chinese stir fry.  The family is distinguished by its four petaled flowers that resemble a cross, hence we also call them the crucifers (from crucifix).  Due to their general tastiness and long history of domestication, they are also loved by garden pests.

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While weeds make a place look unsightly and not well kept (where is the gardener around here?!), they are also part of a wild web of life on earth that supports a variety of organisms.  Weeds hover at the margins of human civilization, and are in a state of constant adaptation.  These are three common weeds in  San Francisco:

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In general, in the garden, pesticides are used as a last resort.  They are many ways to prevent outbreaks of insect pests from the beginning, or to keep the pests at a level that is tolerable.  Well, what’s a spot or two or a little extra protein?

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There are advantages to the use of pesticides too.  Well, that will be for another day…Blackberry and ivy are calling me!