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TEKTRAN
The ARS Manuscripts Database
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57 publication requests found in 2.532 seconds.
- RESEARCH AND INITIAL SUCCESS ON BIOLOGICAL CONTROL OF SALTCEDAR IN THE UNITED STATES, WITH EMPHASIS ON TEXAS AND NEW MEXICO
Biological control has successfully controlled 10 exotic, invasive weeds of rangelands and natural ecosystems in the United States since 1945, and control of others is in progress. We initiated biological control of saltcedars (Tamarix spp.) in 1986, using host-specific insect herbivores that regula...
- ACCEPTABILITY AND SUITABILITY OF ATHEL, TAMARIX APHYLLA, TO THE LEAF BEETLE DIORHABDA ELONGATA (COLEOPTERA: CHRYSOMELIDAE), A BIOLOGICAL CONTROL AGENT OF SALTCEDAR (TAMARIX SPP.)
The leaf beetle Diorhabda elongata (Brullé) sensu lato has been released in the western United States for the classical biological control of exotic saltcedars (Tamarix species and hybrids). However, athel (T. aphylla (L.) Karsten), a moderately valued evergreen species in the southwestern U.S. and ...
- ESTIMATING TEMPERATURE-DEPENDENT DEVELOPMENTAL RATES OF DIORHABDA ELONGATA (COLEOPTERA: CHRYSOMELIDAE), A BIOLOGICAL CONTROL AGENT OF SALTCEDAR (TAMARIX, SPP.)
Developmental times and survival rates of the immature stages of Diorhabda elongata Brullé (Coleoptera: Chrysomelidae), a biological control agent of saltcedar (Tamarix spp.), were studied in the laboratory at six constant temperatures (15 to 40ºC). At 15ºC and 40ºC, eggs did not develop and sustai...
- Overwintering survival, phenology, voltinism, and reproduction among different populations of the leaf beetle Diorhabda elongata (Coleoptera: Chrysomelidae)
The classical biological control program for exotic saltcedars (various Tamarix species and hybrids) has involved the assessment of different populations of the leaf beetle Diorhabda elongata (Brullé) sensu lato that are promising for release in areas of North America that are located south of 37°N ...
- IDENTIFICATION OF THE AGGREGATION PHEROMONE OF DIORHABDA ELONGATA, A BIOLOGICAL CONTROL AGENT OF SALTCEDAR (TAMARIX SPP.)
We have identified the male-produced aggregation pheromone of Diorhabda elongata Brullé (Coleoptera: Chrysomelidae), as a two component blend of (2E,4Z)-2,4-heptadienal (1) and (2E,4Z)-2,4-heptadien-1-ol (2). Existence of the pheromone was demonstrated by gas chromatographic comparison of volatiles...
- Behaviorally active green leaf volatiles for monitoring the leaf beetle Diorhabda elongata, a biocontrol agent of saltcedar
Biological activity and chemistry of host plant volatiles were investigated for Diorhabda elongata, Brullé (Coleoptera: Chrysomelidae), a biological control agent for the invasive weedy tree, saltcedar (Tamarix spp., Tamaricaceae). Gas chromatographic-electroantennographic detection (GC-EAD) analys...
- FIELD ASSESSMENT OF THE RISK POSED BY DIORHABDA ELONGATA, A BIOCONTROL AGENT FOR CONTROL OF SALTCEDAR (TAMARIX SPP.), TO A NON-TARGET PLANT, FRANKENIA SALINA
The biological control program for saltcedar (Tamarix spp.) has led to open releases of a specialist beetle (Chrysomelidae: Diorhabda elongata) in several research locations, but the controversy over potential impacts to native, non-target plants of the genus Frankenia remains unresolved. To assess ...
- Open field host selection and behavior by tamarisk beetles (Diorhabda spp.)(Coleoptera: Chrysomelidae) in biological control of exotic saltcedars (Tamarix spp.) and risks to non-target athel (T. aphylla) and native Frankenia
Biological control of exotic, invasive saltcedars (Tamarix spp.) in the western USA involves releases of exotic saltcedar leaf beetles, Diorhabda elongata Brullé sensu lato. Adults in cages alight, feed and oviposit on athel (Tamarix aphylla), an evergreen cold-intolerant tree used for shade and as...
- HOST SPECIFICITY OF DIFFERENT POPULATIONS OF THE LEAF BEETLE DIORHABDA ELONGATA (COLEOPTERA: CHRYSOMELIDAE), A BIOLOGICAL CONTROL AGENT OF SALTCEDAR (TAMARIX SPP.)
The leaf beetle, Diorhabda elongata (Brullé), was released in 2001 for the classical biological control of exotic saltcedars, a complex of four invasive Tamarix species and various hybrids. It did not establish at sites south of 37°N latitude where summer daylengths are below the critical photoperio...
- MONITORING THE DYNAMICS OF SALTCEDAR BIOLOGICAL CONTROL IN LOVELOCK, NEVADA
Saltcedar (Tamarix ramosissima and T. parviflora) are a major invasive weeds throughout the United States and Mexico. Introduced to the United States in the 1800s, the weeds infest riparian areas, displace much of the native vegetation, increase fire hazards and cause an estimated $300 million (ann...
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