We have initiated the cloning of a novel protein receptor for the Bacillus thuringiensis biopesticides using the forest pest Malacosoma americanum, the Eastern Tent Caterpillar
(ETC), as our target insect.
Effect of host and nonhost trees on the growth and development of the forest tent caterpillar
, Malacosoma disstria (Lepidoptera: Lasiocampidae).
Fitzgerald, The Tent Caterpillars
(Ithaca: Cornell UP, 1995) 212-15.
Nine risk factors were identified by the study, and four were deemed significant: topical use of an insecticide, the presence of Eastern Tent caterpillars
, the presence of MRLS and increased illnesses.
An analysis of daily foraging patterns of laboratory colonies of the eastern tent caterpillar
, Malacossoma americanum (Lepidoptera: Lasiocampidae), recorded photo-electronically.
Jesus must have known about the tent caterpillars
in our lives.
Some maternal influences on progeny quality in the western tent caterpillar
, Malacosoma pluviale (Dyar).
Hierarchical lower-level genetic structure of eastern tent caterpillar
populations was studied previously at scales including (1) the colony, (2) the host tree, (3) the host tree patch, and (4) local demes consisting of several host-tree patches (Costa and Ross 1993).
announced today that the weblike nests, or tents, that are appearing in Maryland's trees are eastern tent caterpillar
nests and are not gypsy moths.
But the spring feeding and web construction of the tent caterpillar
occurs on the newly emerged leaves, before the leaves have had the opportunity to replace the tree's store of carbohydrates used in leaf emergence.
In fact, friendly flies are actually a blessing--they keep forest tent caterpillar
populations in check, and thereby save our valuable woodlands from total defoliation.
Meating says they've conducted trials against more than a dozen damaging insects including the spruce budworm, gypsy moth, jack pine budworm, forest tent caterpillar
, sawflies, and even the mountain pine beetle in Western Canada.
The result was not a single tent caterpillar
Researchers have recently been taking a look at wild-cherry trees and the proliferation of the Eastern Tent caterpillar
as a possible cause.
Examples of maternal effects are: the increased ability of autumnal moth (Epirrita autumnata) caterpillars to feed on foliage with induced defensive chemicals if their mothers originated from a high-density population (Haukioja and Neuvonen 1987); the variation in egg size and associated cold tolerance in spruce budworm, Choristoneura fumiferana (Harvey 1985); the variation of western tent caterpillar
(Malacosoma californicum pluviale) activity and survival with the history of the mother in such a way that food-stressed mothers produce less active caterpillars (Wellington 1965); and the variation in survival of offspring with food quality of the parental generation of fall webworm, Hyphantria cunea (Morris 1967).