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Solid food carried into nests of ants by foraging workers is reported to be fed to larvae for digestion before nutrients are transmitted back to workers. The role of the digestion of solid food by larvae for worker consumption was investigated in the use of gel and granular baits in the management o...
Development of the reproductive stages in the life cycle of ants varies among species. Formicine ants usually overwinter or spend development time in the nest between eclosion and the mating flight. Many of the Dolichodorinae and Myrmecinae mate in the nest and colonies reproduce by budding. A formi...
Workshops on ant identification have been offered in Washington, Oregon, and British Columbia to pest management professionals since 1996 during with winter season. Number of workshops varies from 3 to 7 each year. Classes are nearly always filled to a capacity of 24 for each four-hour session. Each...
Camponotus colonies have a worker subcaste, consisting of major and minor workers. This designation is based on the width and height of the head (cephalic index, CI). Performance of tasks by workers results in wear of the mandibular teeth. A sample of workers was taken from a laboratory colony of Ca...
One thousand four hundred seventy-seven botanical specimens represented by urban trees and palm trees, found in gardens, public squares and streets in the area of Cidade Jardim, a district in Sao Paulo, Brazil, were evaluated from 2004 to 2008. The aim was to determine which species of carpenter ant...
Ants are social insects that can be found almost in every terrestrial environment around the world. As in natural environment, the artificial environments are excellent places to install nests, but when installed in human habitations they are considered urban pests, because of the inconvenience caus...
Baiting offers an integral tool in the management of ants. Baiting trials with Camponotus modoc were successful in 55% of field trials with two granular, three gel, and two containerized baits in 2005-2007. Results with two granular, three gel, and four containerized baits in laboratory trials yield...
Carpenter ants are major structural pests in the United States, Canada, and Scandinavian countries. With the advent of non-repellent chemicals and more attractive baits, shifts have occurred in management strategies that include either perimeter sprays or baiting as the sole method for control. Four...
The toxicity of granular ant bait formulations containing abamectin B1, orthoboric acid, or propoxur was evaluated in a series of laboratory experiments against American, Periplaneta americana (L.), and German, Blattella germanica (L.), cockroaches. LT50 values for American cockroaches ranged from &...
Carpenter ants, Camponotusspp., are major structural pests as well as nuisance pests in northern areas of the United States, southern Canada, and northern Europe. Management tools have included cultural controls to modify habitats and foraging, dust applications to wall voids, perimeter sprays, bait...
Carpenter ants feed on both liquid and solid food. Baiting for carpenter ants has proceeded using both of these media to introduce toxicants into the colony for control. Ingestion of food particles larger than 100 microns is effectively curtailed by the specializations of the epipharynx, hypopharynx...
Impact of carpenter ant infestations in structures ranges from nuisance pests to seriously damaging pests if structural timbers are attacked. Carpenter ants excavate wood to form galleries for their brood and tunnels for foragers. A mature colony consists of a parent or main colony with the queen, w...
In North America 20 species of Camponotus have been recorded as pest species causing either structural damage or occurring as nuisance species. Structurally damaging species are found in the subgenera: Camponotus. Tanaemyrmex, and Myrmothrix. Carpenter ants causing the most serious damage in eastern...
Global potential of sulfuryl fluoride (SF), S02F2, the active ingredient in Vikane* Gas Fumigant is being reexamined in light of recent regulatory pressures on competitive fumigants. Researchers in Europe and Japan are investigating the utility of SF as an alternative to Methyl Bromide for control o...