Tag Archives: Argentina

The “Dagger Butt Weevil”

In April 2012 I spent some time in northern Argentina collecting insects, and while collecting was not that great (late in the season after a protracted drought) I saw enough of interest to make it a worthwhile effort. Among the … Continue reading

Posted in Coleoptera, Curculionidae | Tagged , , , , , , , | 4 Comments

Quick Guide to Armyworms on Soybean

Throughout the soybean growing areas of the southern U.S. and South America, lepidopteran caterpillars are the most important pest complex affecting the crop. Millions of pounds of insecticides are sprayed on the crop each year in an effort to minimize … Continue reading

Posted in Lepidoptera, Noctuidae | Tagged , , , , , , , , , , , | 5 Comments

Giving me the weevil eye!

The order Coleoptera (beetles) is, of course, the largest single group of animals on earth, and by most accounts the Curculionidae (weevils) and their close relatives are the largest family-level group within the order. At 60,000 species and counting, weevils account … Continue reading

Posted in Coleoptera, Curculionidae | Tagged , , , , , , , , | 5 Comments

Group mimicry in Cerambycidae… and more

During last year’s extended visit to Argentina, I had the chance to spend the early part of April in the northern province of Chaco. Though much of this hot, arid plain has been converted to agriculture, remnants of thorn forest remain along … Continue reading

Posted in Cerambycidae, Coleoptera | Tagged , , , , , , , , | 2 Comments

Bollworms rising!

One of the most pernicious pests that U.S. farmers have battled is the larval stage of Helicoverpa zea (Lepidoptera: Noctuidae). This insect is destructive enough to have earned not just one official common name, but four (corn earworm, cotton bollworm, soybean podworm, … Continue reading

Posted in Lepidoptera, Noctuidae | Tagged , , , , , | 9 Comments

The true Ombú

Recall ID Challenge #21, which featured a photograph of the massively buttressed trunk of a rubber tree (Ficus elastica) planted more than 200 years ago in Buenos Aires, Argentina and give the name Gran Gomero (meaning “big rubber”). There are many … Continue reading

Posted in Phytolaccaceae, Plantae | Tagged , , , , | 6 Comments

The 213-year old “Gran Gomero”

Here are two more views of the tree featured in ID Challenge #21. This is El “Gran Gomero,” a planted rubber tree (Ficus elastica) located in the upscale Recoleta district of Buenos Aires, Argentina. Whenever locals give a name to an individual … Continue reading

Posted in Moraceae | Tagged , , , | 8 Comments

The “little soybean weevil”

Lepidopteran caterpillars are without question the most important pests affecting soybean in South America, while stink bugs run a close second in terms of economic impact and as the targets of insecticide applications. There are, however, a number of weevil … Continue reading

Posted in Coleoptera, Curculionidae | Tagged , , , , , , , , | 6 Comments