Showing posts with label bugs. Show all posts
Showing posts with label bugs. Show all posts

Monday, August 20, 2012

Snapshot Sunday: What's With All The Screaming?

I was shifting the small goats' pasture to new ground today when I moved some old wood out of the way of the fence, and found this lady in an odd, knobby jumper:

 

Mother was not very happy about the roof coming off.  I only had my phone with me to further invade her privacy, so the photo is not what it could have been.

She's a wolf spider (family Lycosidae) and the kids have just hatched. That's their empty egg case she's carrying behind her like a limp balloon.  Once they hatch, they climb her legs and ride around on her back until they are big enough to go off on their own to hunt.

Field guide authors and nature writers feel the curious need to emphasize the "solitary" nature of the wolf spider, as if they were some kind of weird hermits in contrast to the normally highly gregarious arachnid clan.

Really? So carrying several hundred of your family members around as they jostle for position on your back for a good chunk of your own lifespan is not enough togetherness for any arthropod?




Monday, September 5, 2011

Macro Monday: Hornworms' Lament

Fish gotta swim and birds gotta fly. Insects, it seems, gotta do one horrible thing after another.

-- Annie Dillard, Pilgrim at Tinker Creek


Our friend Andy spotted these two critters on the currant tomato that is growing rampantly in the washtub by the grape arbor.






They are larvae of Manduca quinquemaculata -- the five-spotted hawk moth -- aka tomato hornworms.

And they have munched their last nightshade leaves.

The stuff that looks like a a threadbare white shag carpet are parasitoids -- the pupae of a braconid wasp. As larvae, they already ate most of the insides of the hornworms, which maintain just enough life to cling to the branch where they stopped. (I took these photos on Saturday, and the worms are still where we left them.) Soon they will hatch out into adults and go hunting other hornworms on which to lay their eggs. I've never seen a hornworm with this heavy a parasitoid infestation. I guess they aren't any more doomed / dead than one with a few pupae.

I'm ambivalent about this particular horrible thing. The hornworms can really play hell with the tomatoes, and the little wasps are very effective at controlling them. But the adult moths are magnificent -- easy to mistake for hummingbirds when one first sees one -- and we have lots of tomato foliage. When I find a healthy hornworm, I tend to just stick it on a robust volunteer tomato somewhere away from the garden, or else on some wild nightshade.

The life cycle of parasitic wasps is the stuff of nightmares and the inspiration for some viscerally horrifying speculative fiction.


Detail

Monday, August 22, 2011

Macro Monday: Moving Day

Rosie thought she had it tough three weeks ago -- six whole puppies to move into the living room, and with only one human to step 'n' fetchit for her.

At the PARSEC picnic this Saturday, someone spotted these lovely golden ants on the march. We quickly ascertained that they were moving house, from under a hydrangea in a landscape island to beneath a sidewalk slab about 12 feet away.

I got this with my iPhone. There is some quality loss from the YouTube conversion -- not sure why. The original is much sharper.



Notice how the larvae and pupae only go in one direction. The ants moving left to right are returning to the old nest for more kids or stuff to shift.

I think The Vandals really capture the energy of ant moving day.

Friday, July 22, 2011

Photo Phriday: Commensal


She hops up onto the back deck -- three steps up -- nearly every night, and stations herself by the glass door. There she picks off the bugs that hit the window and drop. I leave a light on in the kitchen for her, and try to remember to close the door so that she has maximum dinner-collection area, and also so I don't step in toad shit in the kitchen.

I bring her stinkbugs and Junebugs -- but never fireflies -- and she now hops towards me when she sees me coming out.

She's the only being I've ever seen who will eat a second stink bug.

The dogs have been lounging on the deck late nights in the heat. They politely give her a couple feet of space near the door, and she pays them no mind.

Everyone should have a porch toad.

Sunday, June 26, 2011

Snapshot Sunday: A Matter of Scale

Click any image to embiggen even more.

Native ladybug on green twill trousers.

Mystery insect. Ailanthus webworm moth.

Swallowtail

Milkweed flowers

Cole and Mommy.

Monday, August 23, 2010

Monday, July 19, 2010

Macro Monday: Lunch Break


This hornet flew in and took a lunch break on the cherry tree while I was hanging laundry.

PC insists he is not a yellowjacket. Says you can tell because he is working for a living.

Sunday, September 21, 2008

The Missing Vermin


I feel like I'm courting disaster to even say it, but here it is:


Our new farm is mysteriously lacking in certain key pests.

When we were preparing to buy the property, I developed a game plan to deal with the critters from whom I expected trouble.

The cleft just below the house (what I like to think of as the plumber's buttcrack of our personal topography), where a perennial spring comes to the surface and begins a deeper ravine along the long axis of the property, features dense brush and perpetual damp. On the advice of my friend Janeen, I bought a butt-crack-kicking Echo weed-whacker, with the intention of clearing out most of it. It seemed like the kind of place where troublesome pests would set up home base for raids into the tamer areas of the farm.


The butt-crack. This is the top portion, the sort of plumber-butt segment at the top of the ravine, viewed from the back deck. It gets deeper, darker, moister and hairier as one goes downhill.

My plan to control garden-raiding groundhogs was simple: Let Pip free-range. This has worked precisely as expected.

And I also made plans to deal more directly with the Big Three arthropod pests. I'm averse to chemicals and lazy, so this mainly meant arranging for others to do the dirty work.

Bat houses and a purple martin house, to help control the West Nile and heartworm vector mosquitos that must surely swarm from the vicinity of the spring.

Hanging traps and the ever-popular husband with a can of politically incorrect wasp killer to take out the ground-nesting hornets and German yellowjackets that get nasty in late summer, and pose an immediate threat to my life due to an overly-enthusiastic immune system.

Guinea fowl to eat the vile, Satanic, Lyme-disease-carrying ticks from the eighth dimension.

We've been here all summer, in a house where the windows have either crummy screens or none at all. I may have suffered three mosquito bites. Seen a couple of yellowjackets (and squashed them, on the theory that eliminating the scouts may discourage the army). And found not one single tick among four dogs, three cats, and two humans.

I think the answer to these mysterious absences lie in the power of biodiversity.

The mystery of the missing mosquitos is solved every night, as we watch our resident barn swallows perform airs above the ground in the space between the house and barn. Several guano heaps in the barn and outbuildings is a small price to pay for their elegant presence and diligent attention to their appetites. There are also scores of species of other songbirds, some of which I have not yet identified, and have never seen in my life. And the dragonflies who join the swallows as my aerial escort when I mow. But I believe the swallows are the backbone.

We've been surprised to find that mosquito control is apparently accomplished entirely by the day shift workers here. I haven't seen any bats, despite the many bat-friendly structures and grandaddy trees here. We will try bat houses on the south-facing wall of the barn next year, just because we like these critters, and, as the cavers' t-shirts remind us, murcielagos necesitan amigos. I hope the swallows don't mind the competition.

The dearth of blood-sucking arachnids is the most complete, and most welcome, of our absent arthropods. The normal density of white-tailed deer frequent our acres; they bed in the hayfield and the eastern end of our larger pasture, travel through the woods to drink below the spring, help themselves to apples and crabapples in the overgrown trees, bulk up on acorns, and likely yard up in winter in the pines that mark our northern property line.

There should be ticks. This has been a bad tick year elsewhere. I've used Frontline on the dogs once -- after we all trained at a notoriously tick-ey state gameland, and found dozens of the monsters on each dog and on ourselves. (When are they going to sell me some Frontline For Peoples?) I had to tick-bomb my car after that outing.

Did I mention how much I hate ticks?

But in addition to deer, we have a healthy flock of wild turkeys. They have brush cover, acorns, berries, cherries, and bugs to eat here; apparently they like ticks best of all.

The day after we closed on the house, a big tom entertained me by performing his sexy dance thirty feet from my office window, while several more demure ladies eyed him from the brush.

And turkey guano is the Axxe body spray of the discriminating teenage farm dog. (Smells like burnt tractor tranny fluid and ass.)

Again, I'm willing to suck it up and apply shampoo in return for services rendered. Happily, even.

I got guineas anyway; just don't think I need them for tick-patrol.

The yellowjackets should have appeared in late summer, getting stoned on apple drops, guarding trash cans, dogging our barbeques, crawling into Coke cans and becoming pissy about the fact that they were soon to die.

But they're just not here.

What is here are honeybees, solitary bees, bumblebees, carpenter bees. Giant hornets, solitary wasps, colonial wasps -- big black ones with baroque waistlines, tiny parasitic ones. Scores of species of hymenoptera, and millions of individuals. The pastures, hayfield, fruit trees, mint patches, and the shaggy butt crack hum all day when the sun shines.

As an anaphylactic who is now a confirmed cross-reactor -- woo hoo! -- this would make me nervous if I didn't know three things:

-- If I leave them alone, they'll do their level best to leave me alone.

-- Harmony volunteer ambulance is a fast and professional ALS service with highly skilled paramedics. Don't ask me how I found this out.

-- Many of these wasps eat those nasty little yellow-striped communist bastards. That's where they all went. Into the bellies of monsters like this:


(Found already deceased in the dogs' water bucket; no predatory wasps were harmed in the making of this blog.)

A lot of things end up eaten by one of these, too:


The hayfield is swarming with them; Zorak here is eating a cricket, her salary for the photo shoot.

The diversity of bird and insect life here is a direct result of the diversity in the land. We have overgrown hayfield, pasture, woods with both old trees and young ones, brush and bramble, lawn, swamp, and stream. Because the multiple pastures are long and narrow, the edge habitat is maximized. And edges are where it all happens.

My fervor for shaving the hairy buttcrack of this farm with a string trimmer has dampened. The bramble, pokeweed, Joe Pye, lamb's quarters, goldenrod, fleabane -- everything except the burdock, which had a talk with the machete and the fire pit -- is wild and rank now. I hang laundry from my deck above and watch its edges, where it meets woods, pasture, barnyard, lawn and water. I never know what might happen next at the boundary.