Showing posts with label nature. Show all posts
Showing posts with label nature. Show all posts

Thursday, January 20, 2011

Sweet Gum in the snow



The Sweet Gum tree, Liquidambar styraciflua, stands stately between our house and vegetable garden.  Today it is collecting snow,  the songbirds lite in it on their way to and from the feeders.  There is a Cardinal in the lower left hand corner.  (Guest post from Jo Smith.)


Celebrate a tree in 2011.  It's easy:  Observe, photograph, sketch, discuss and share with other tree huggers.  Please click the logo above for participation details.

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Sunday, November 23, 2008

Green Cloverworm Moth (Hypena scabra)



Green Cloverworm Moth (Hypena scabra)

While certainly not the most beautiful moth ever attracted to my porch light, the Green Cloverworm Moth is abundant, especially late in the season. On several warmer evenings in late fall, I saw dozens of these moths and only one or two specimens of other species.

Life Cycle (from Bugwood Wiki): Green cloverworms overwinter either as pupae or adults. Moths become active in the spring and lay their eggs on the undersides of leaves. Eggs hatch in less than a week and larvae may feed for four weeks. Larvae burrow into litter or soil and pupate. Four or more generations occur annually in Georgia (and other southern states).

BugGuide says: Adults fly from March to November, or all year in warmer regions, but are most common in late summer and fall.

Green Cloverworm Moths are found in fields, gardens, wood edges and waste places. Hosts plants include alfalfa, beans, clover, cowpea, soybean, strawberry, vetch, many common weeds, and other legumes. All sources agree that Green Cloverworms seldom occur in large enough numbers to reduce the yield of a crop materially.

While the basic pattern remains the same, the coloration of Green Cloverworm Moths can vary greatly. The Moth Photographers Group has photographs of several different specimens showing this color variation.

(Thanks to John Maxwell on BugGuide for this ID.)

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Wednesday, November 12, 2008

Tachinid Fly (Genus Peleteria)







In general, most tachinid flies are relatively large and bristly.  They often mimic wasp or bees.













Adult tachinids feed on pollen and nectar.  Larvae are parasites, preying on other insects -- often caterpillars.  Most tachinids deposit their eggs directly on the body of their host, and it is not uncommon to see caterpillars with several tachinid eggs on them. Upon hatching the larva usually burrows into its host and feeds internally. When fully developed it leaves the host and pupates nearby.   Larvae of Genus Peleteria prey Lepidoptera (butterflies and moths).








There are 1,345 species in 303 genera of tachinid flies in North America.  They can be found practically anywhere and everywhere. Tachinids are often abundant on sunny hilltops looking for mates.









Information source:  BugGuide

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Thursday, November 06, 2008

Camel Cricket (Family Rhaphidophoridae)



Camel Cricket (Family Rhaphidophoridae)

If you've always want a lucky cricket but were afraid its chirping would keep you awake at night, then the camel criket is your solution.  It has neither wings nor can it chirp.  Jumping is the camel cricket's (aka cave cricket) forte.
  


The camel crickets are a moderately common group of insects. They are also known as cave crickets, a name descriptive of their natural habitat. Like all crickets, the camel crickets have very large hind legs and long antennae. They are brownish in color and humpbacked in appearance. They are wingless and up to one inch long.

As the name implies, cave crickets are found in caves. However, they live in other cool, damp situations such as in wells, rotten logs, stumps and hollow trees, and under damp leaves, stones, boards and logs.

Camel crickets are of little economic importance except as a nuisance in buildings and homes, especially basements. They are usually "accidental invaders" that wander in by mistake from adjacent areas. They generally do not reproduce indoors, except in situations that provide continuous dark, moist conditions. 

A PDF from Clemson University continues:

They do have chewing mouthparts, like other crickets, and can feed on many different kinds of animal products, plants, fabrics and even other insects. Though they are mostly considered just a nuisance
pest, they can cause some damage, especially if they occur in large numbers. Indoors, they can damage fine fabrics and houseplants. Outdoors, they can damage plants, fabrics on lawn furniture, and have even been reported feeding on clothing on a clothesline.

Camel crickets spend the winter as either immatures or adults. In the spring, females lay eggs in the soil and they hatch in a few weeks. In greenhouses and other warm locations, camel crickets may breed year round. Very little is known about the biology of this group of crickets.


Such is the fate of most insects having little economic importance to humans.

See also:  BugGuide Family Page 
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Saturday, November 01, 2008

Soldier (Leatherwing) Beetles

Like almost all insects (except flies), beetles have four wings. However, in beetles the forewings are hardened into wing covers (elytra) that meet in a straight line down the back of the abdomen when closed. The elytra on soldier beetles (and their close relatives lightning bugs) are more hardened than other insect wings, but not as hard as those on most other beetles. These insects are often called leatherwings.

There are approximately 16 genera and 455 species of soldier beetles in North America. Most adults eat nectar and pollen, although a few are reported to eat other insects like aphids. Larval soldier beetles are generally carnivorous and feed on small soft-bodied insects.

Two of the more common soldier beetles are:


Margined Leatherwing
(Chauliognathus marginatus)

The identifying characteristic of the Margined Leatherwing Beetle is the wide black line running from front to rear down the middle of its pronotum (the short body segment between head and abdomen. The Margined Leatherwing is also most likely to be seen in the spring and early summer. (Photo from 5/17/06)






Goldenrod Soldier Beetle
(Chauliognathus pensylvanicus)
The Goldenrod Soldier Beetle has an irregularly shaped dot in the middle of its pronotum. The dot does not run all the way to the front or rear. This beetle is also most likely to be seen in the late summer and fall. (Photo from 9/6/08)
(The amount of black on the elytra of both species varies among individuals and is not significant for making an ID.)





Sources and additional information:
BugGuide: Goldenrod Soldier Beetle
BugGuide: Margined Leatherwing Beetle
University of Kentucky: Soldier Beetles
Chicago Wilderness Magazine: Margined Soldier Beetle

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Saturday, October 25, 2008

Spotted Cucumber Beetle (Diabrotica undecimpunctata)


Spotted Cucumber Beetle (Diabrotica undecimpunctata)

From a human perspective, this brightly colored, spotted little critter is a PEST.  The larvae (often called a Southern Corn Rootworm) feed on the roots of a large range of plants, including many field crops.  Adults will eat almost anything from cucumbers to roses.  Adults also transmit bacterial wilt and other diseases.

As with many other pest species, our experience with this beetle in our garden is that there is almost always a few around during the growing season, but they've never been a problem.  Their population has always remained at a background level.
 


This particular cucumber beetle is feasting on a fallen and partially fermented persimmon.  These persimmons are attracting many insects, mostly bees and wasps.  I've read about wild mammals becoming intoxicated after eating large amounts of fermented fruit.  I wonder if the same thing can happen with insects?  One the one hand, the alcohol content of the persimmons is low and the insects eat tiny amounts.  On the other hand, the body weight of  insects is minuscule.  It wouldn't take much alcohol to produce inebriation.  I mean, how can one tell if a beetle or wasp is flying under the influence of alcohol?

Source:  BugGuide
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Thursday, October 23, 2008

Bird's Foot Violet (Viola pedata)

Bird's Foot Violet (Viola pedata)

Normally a spring-blooming wildflower, a few bird's foot violets along the road out insist upon late summer or early fall blooming too.
Additional Resources:
Discover Life
Missouri Plants
Missouri Botanical Garden


Previous Post: April 9, 2007

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Tuesday, October 21, 2008

Pathetic Potato Harvest

Background: Due to a variety of circumstances more or less beyond our control, Jo and I didn't even begin preparing the beds and planting our garden until after our last spring art fair which was held on the first weekend in June. Because of our late start, we didn't bother planting some crops -- like corn. We anticipated problems with other crops. We figured the question was: Would the crops produced before succumbing to the prolonged heat and dryness typical of our late summer?

One barely full flat of Yukon Golds is our pathetic potato harvest for 2008. We normally have four or five of those wooden flats heaping full.

That question proved irrelevant. The later part of this summer was much cooler and wetter than most. Had I known this in advance, I would have predicted a bumper crop of veggies. I would have been wrong. Some veggies -- like tomatoes and green beans -- produced well. Others -- like the potatoes we harvested today -- did not do so well. I really do not know why our potatoes produced so poorly. I've heard others also had poor potato yields. Ditto for peppers (bell, jalapeno, etc.) which are usually a "nothing to it" plant to grow.

A half of five gallon bucket of sweet potatoes instead of our normal harvest of 3+ buckets full.

As far as conditions unique to our garden that might have contributed to our dismal potato crop: The Yukon Golds never produced the normal amount of foliage. First they were attacked by a heavy infestation of squash bugs sucking out their juices and then blister beetles ate what little foliage the potatoes had managed to grow. Mid-season squash bugs and late season blister beetles seems especially bad the year. Squash bugs aren't usually a problem on potatoes in our garden.

We actually planted fewer sweet potato slips this year. Jo thought she might be planting the sweet potatoes too close together so they competed with each other for nutrients. She experiment by planting fewer potatoes farther apart, thinking each plant might produce more and/or larger potatoes. That experiment was a resounding failure.

The sweet potato vines were still growing well. The rabbits had even stopped keeping the edges trimmed.
We normally dig sweet potatoes right before the first frost which isn't even in our forecast yet, but we decided to go ahead and harvest them today since the ground is relatively dry and rain is in our forecast. I doubt the potatoes were apt to get any larger or more numerous.

Finally, both potato beds were hard to dig because of the tree roots that had grown into them over the summer. Perhaps those roots had robbed nutrients. (Cutting trash trees that have grown up around the edge of the garden is one of this winter's projects.)



While we dug potatoes, a variety of butterflies were enjoying the garden flowers. The zinnias are getting a bit ragged this late in the season, but they are still growing and attracting butterflies.

(Left to right: Monarch, Cloudless Sulphur and Painted Lady)

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Saturday, October 18, 2008

Cloudless Sulphur (Phoebis sennae)

Cloudless Sulphur (Phoebis sennae)

For several weeks during the fall Sulphurs are the most common butterflies here in the Ozarks.  Okra's long-tubed blooms are well suited to Sulphurs' feeding habits.  The end results are excellent yellow on yellow photo opportunities.

From Butterflies and Moths of North America and the BugGuide:

Identification: Upper surface of male is lemon yellow with no markings. Female is yellow or white; outer edges of both wings with irregular black borders; upper  forewing with dark spot in cell. Lower surface of hindwing of both sexes with 2 pink-edged silver spots.

Life history: Males patrol with rapid flight, searching for receptive females. Eggs are laid singly on young leaves or flower buds of host plants; caterpillars eat leaves and rest on underside of leaf petioles.

Flight: Many flights year around in the Deep South; may have one flight in late summer in other southern states; immigrants to northern states in August or September usually do not reproduce.

Caterpillar hosts: Cassia species in the pea family (Fabaceae).

Adult food: Nectar from many different flowers with long tubes including cordia, bougainvilla, cardinal flower, hibiscus, lantana, and wild morning glory.


Habitat: Disturbed open areas including parks, yards, gardens, beaches, road edges, abandoned fields, scrub

Range: Permanent resident from Argentina north to southern Texas and the Deep South. Regular visitor and occasional colonist in most of the eastern United States and the Southwest.

Okra (Abelmoschus esculentus)

From the University of Illinois Extension Service:

Okra is a tall-growing, warm-season, annual vegetable from the same family (Mallow) as hollyhock, rose of Sharon and hibiscus. The immature pods are used for soups, canning and stews or as a fried or boiled vegetable. The hibiscus like flowers and upright plant (3 to 6 feet or more in height) have
ornamental value for backyard gardens.

Other okra links:

All About Okra

Texas A and M University
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