Showing posts with label clover. Show all posts
Showing posts with label clover. Show all posts

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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Saturday, May 17, 2008

Field Clover (Trifolium sp)


Field Clover (Trifolium sp)

My best guess is that this is Trifolium campestre, but maybe not. According to the USDA, there are 236 genera in Fabaceae (the pea family) and 170 species in Trifolium (clover). Many look quite similar. Regardless, like most (all?) clover, it is an invasive weed. It is native to Eurasia and Africa and was brought to North America to serve as fodder and for soil improvement. Since its introduction it has spread throughout most of the United States and Canada, except for a few states in the arid Southwest. You might as well enjoy its cluster of little yellow flowers because field clover is fully naturalized and is here to stay.

Sources and Links:
Missouri Plants
USDA Distribution Map & Plant Profile
University of Washington Burke Museum of Natural History

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