Temperature Preferences of Four Subterranean Termite Species (Isoptera: Rhinotermitidae) and Temperature-Dependent Survivorship and Wood-Consumption Rate

2015 ◽  
Vol 109 (1) ◽  
pp. 64-71 ◽  
Author(s):  
Runxin Cao ◽  
Nan-Yao Su
Keyword(s):  
Consumption Rate ◽  
Subterranean Termite ◽  
Temperature Dependent ◽  
Termite Species ◽  
Temperature Preferences ◽  
Wood Consumption

Colony Characteristics and Seasonal Activity of the Formosan Subterranean Termite (Isoptera: Rhinotermitidae) in Louis Armstrong Park, New Orleans, Louisiana

2005 ◽  
Vol 40 (3) ◽  
pp. 268-279 ◽  
Author(s):  
Matthew T. Messenger ◽  
Nan-Yao Su
Keyword(s):  
New Orleans ◽  
Large Scale ◽  
Consumption Rate ◽  
Reticulitermes Flavipes ◽  
Coptotermes Formosanus ◽  
Subterranean Termite ◽  
Territory Size ◽  
Seasonal Activity ◽  
Formosan Subterranean Termite ◽  
Wood Consumption

Beginning in 1998, multiple mark-recapture studies were conducted inside 12.75-ha Louis Armstrong Park in New Orleans, LA, to locate and characterize all detectable colonies of the Formosan subterranean termite, Coptotermes formosanus Shiraki (Isoptera: Rhinotermitidae), established within the park. This is the first attempt to characterize subterranean termite colonies on such a large scale within a defined area. As a result, 13 C. formosanus colonies were identified using characteristics such as mean worker weight (range, 2.96–4.54 mg), foraging territory size (range, 83–1634 m2), and wood consumption rate (range, 0.6–5.2 g wood/monitoring station/day). In addition, six Reticulitermes flavipes (Kollar) (Isoptera: Rhinotermitidae) colonies were identified throughout the park. A total of 251 of 785 (~32%) trees in the park were infested by C. formosanus colonies. Foraging territories of each colony remained relatively stable over a 4-yr period, with seasonal activity within monitoring stations increasing during the summer and decreasing during winter.

scholarly journals Susceptibility of five forest species to Coptotermes gestroi

2009 ◽  
Vol 33 (6) ◽  
pp. 1043-1050 ◽  
Author(s):  
José Hildefonso de Souza ◽  
Elen de Lima Aguiar Menezes ◽  
Robson Mauri ◽  
Euripedes Barsanulfo Menezes
Keyword(s):  
Experimental Design ◽  
Consumption Rate ◽  
Significant Negative Correlation ◽  
Subterranean Termite ◽  
Brazil Nut ◽  
Forest Species ◽  
Significant Damage ◽  
Coptotermes Gestroi ◽  
Wood Consumption ◽  
Janeiro State

Termites are well known for their ability to damage wood and various types of wood-derived products. This study was performed in the municipality of Seropédica, Rio de Janeiro state, Brazil, with the objective of evaluating the susceptibility of the wood of five different forest species to the activity of the Asian subterranean termite, Coptotermes gestroi. Wood stakes from the following forest species were used as specimens: pine (Pinus sp., Pinaceae), Brazil nut (Bertholletia excelsa, Lecythidaceae), cabbage angelin (Andira inermis, Leguminosae-Papilionoideae), maçaranduba (Manilkara huberi, Sapotaceae) and pink ipê (Tabebuia avellanedae, Bignoniaceae). The stakes, with dimensions of 2 cm x 2 cm x 16 cm, were subjected to the activity of C. gestroi from September 2, 2006 to June 2, 2007. The experimental design consisted of randomized blocks with four replications in an 11 x 5 x 3 factorial arrangement. Twelve stakes of each of the five forest species were installed at each of eleven sites, totaling 660 stakes. Three evaluations were performed, at 90, 180 and 270 days after stake installation. The results indicated that the pine, Brazil nut and cabbage angelin stakes were more susceptible to C. gestroi attack, while the pink ipê and maçaranduba stakes suffered no significant damage from this termite. There was a significant negative correlation between the wood consumption rate and the wood density of the species studied. The woods most susceptible to C. gestroi attack presented moderate to low densities and therefore less resistance, as in the case of pine and cabbage angelin.

scholarly journals Concentration-Dependent Feeding Deterrence to 20-Hydroxyecdysone for Three Subterranean Termite Species (Blattodea: Rhinotermitidae)

Insects ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 218
Author(s):  
Lucas Carnohan ◽  
Sang-Bin Lee ◽  
Nan-Yao Su
Keyword(s):  
Reticulitermes Flavipes ◽  
Coptotermes Formosanus ◽  
Subterranean Termite ◽  
Choice Test ◽  
Molting Hormone ◽  
Feeding Deterrence ◽  
Insect Feeding ◽  
Substrate Consumption ◽  
Termite Species ◽  
Potential Methods

Effective active ingredients in toxicant bait formulations must be non-deterrent to insect feeding behavior at lethal concentrations. This study evaluated feeding deterrence for Coptotermes formosanus Shiraki, C. gestroi (Wasmann), and Reticulitermes flavipes (Kollar) when provided access to cellulose impregnated with various concentrations of the insect molting hormone, 20-hydroxyecdysone (20E). Termites were exposed to 20E concentrations of 200, 500, 1000 and 2000 ppm and to noviflumuron at 5000 ppm in a 24 h choice-test, and the mass of substrate consumption from treated and untreated media pads was compared for each treatment. 20E feeding deterrence was detected at 500, 1000 and 2000 ppm for C. gestroi, and at 2000 ppm for C. formosanus. No significant differences in consumption of treated and untreated substrate was detected at any concentration for R. flavipes. Potential methods for reducing deterrence are discussed.

scholarly journals Application strategies by selective medium treated with entomopathogenic bacteria Serratia marcescens and Pseudomonas aeruginosa as potential biocontrol against Coptotermes curvignathus

2021 ◽  
Vol 8 (4) ◽  
Author(s):  
Kit Ling Chin ◽  
Paik San H'ng ◽  
Chuan Li Lee ◽  
Wan Zhen Wong ◽  
Wen Ze Go ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Mortality Rate ◽  
Serratia Marcescens ◽  
Selective Medium ◽  
Subterranean Termite ◽  
High Toxicity ◽  
Entomopathogenic Bacteria ◽  
Long Period ◽  
Behaviour Changes ◽  
Wood Consumption

The success of microbial termiticides in controlling termites depends on the ability of microbes to grow in different media and the functionality of the microbes as a resistant barrier or toxic bait. This study was conducted to understand the mortality rate and behaviour changes of the subterranean termite Coptotermes curvignathus Holmgren introduced with different concentrations of Serratia marcescens strain LGMS 1 and Pseudomonas aeruginosa strain LGMS 3 using wood and soil as bacterial transfer medium. In general, higher concentration of bacteria in soil caused a reduction in tunnelling activity and wood consumption and an increase in mortality. However, application on wood revealed a different outcome. Wood treated with S. marcescens of 10 6 CFU ml −1 concentration proved to be more efficient as bait than higher concentration applications as it caused a high mortality rate while still highly palatable for termites. Wood or soil treated with S. marcescens concentration higher than 10 9 CFU ml −1 creates a high toxicity and repellent barrier for termites. Pseudomonas aeruginosa of 10 9 CFU ml −1 concentrations applied on wood served as a slow-acting toxic bait. However, the ability for S. marcescens and P. aeruginosa to survive on wood is low, which made the bait unable to retain a useful level of toxicity for a long period of time and frequent reapplication is needed.

Identification of Two Subterranean Termite Species (Isoptera: Rhinotermitidae) using Cellulase Genes

2006 ◽  
Vol 99 (1) ◽  
pp. 123-128 ◽  
Author(s):  
Shuji Itakura ◽  
Takafumi Masuta ◽  
Hiromi Tanaka ◽  
Akio Enoki
Keyword(s):  
Subterranean Termite ◽  
Termite Species
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