Life cycle and host range of the gall-forming moth,Meskea horor (Lep.: Thyrididae), and its suitability as a biological control agent forSida acuta andS. rhombifolia (Malvaceae)

Entomophaga ◽  
1997 ◽  
Vol 42 (3) ◽  
pp. 393-403
Author(s):  
M. D. Day ◽  
R. Segura ◽  
M. Martinez
Keyword(s):  
Biological Control ◽  
Life Cycle ◽  
Host Range ◽  
Biological Control Agent ◽  
Control Agent

Physiological host range of Trissolcus mitsukurii, a candidate biological control agent of Halyomorpha halys in Europe

2021 ◽  
Author(s):  
Lucrezia Giovannini ◽  
Giuseppino Sabbatini-Peverieri ◽  
Leonardo Marianelli ◽  
Gabriele Rondoni ◽  
Eric Conti ◽  
...  
Keyword(s):  
Biological Control ◽  
Host Range ◽  
Biological Control Agent ◽  
Control Agent ◽  
Halyomorpha Halys

scholarly journals Biological and Host Range Characteristics of Lysathia flavipes (Coleoptera: Chrysomelidae), a Candidate Biological Control Agent of Invasive Ludwigia spp. (Onagraceae) in the USA

Insects ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 471
Author(s):  
Angelica M. Reddy ◽  
Paul D. Pratt ◽  
Brenda J. Grewell ◽  
Nathan E. Harms ◽  
Ximena Cibils-Stewart ◽  
...  
Keyword(s):  
Biological Control ◽  
Host Range ◽  
Plant Species ◽  
Biocontrol Agent ◽  
Biological Control Agent ◽  
Control Agent ◽  
Native Plant ◽  
Native Plant Species ◽  
The Usa ◽  
Physical And Chemical

Exotic water primroses (Ludwigia spp.) are aggressive invaders in aquatic ecosystems worldwide. To date, management of exotic Ludwigia spp. has been limited to physical and chemical control methods. Biological control provides an alternative approach for the management of invasive Ludwigia spp. but little is known regarding the natural enemies of these exotic plants. Herein the biology and host range of Lysathia flavipes (Boheman), a herbivorous beetle associated with Ludwigia spp. in Argentina and Uruguay, was studied to determine its suitability as a biocontrol agent for multiple closely related target weeds in the USA. The beetle matures from egg to adult in 19.9 ± 1.4 days at 25 °C; females lived 86.3 ± 35.6 days and laid 1510.6 ± 543.4 eggs over their lifespans. No-choice development and oviposition tests were conducted using four Ludwigia species and seven native plant species. Lysathia flavipes showed little discrimination between plant species: larvae aggressively fed and completed development, and the resulting females (F1 generation) oviposited viable eggs on most plant species regardless of origin. These results indicate that L. flavipes is not sufficiently host-specific for further consideration as a biocontrol agent of exotic Ludwigia spp. in the USA and further testing is not warranted.

Studies on Theocolax formiciformis Westw. (Hym., Pteromalidae), a parasite of Anobium punctatum (Deg.) (Col., Anobiidae)

1964 ◽  
Vol 54 (4) ◽  
pp. 797-803 ◽  
Author(s):  
Jean M. Taylor
Keyword(s):  
Biological Control ◽  
Life Cycle ◽  
Relative Humidity ◽  
Wood Surface ◽  
Biological Control Agent ◽  
Glass Plate ◽  
Control Agent ◽  
Large Numbers ◽  
Cent Relative Humidity ◽  
Anobium Punctatum

A description is given of the life-cycle in Britain of Theocolax formiciformis Westw. (Pteromalidae), a parasite of Anobium punctatum (Deg.) (Anobiidae). Adults emerge from infested wood in large numbers from April to June. Eggs are laid through the wood surface and use was made of this habit as a means of rearing this parasite under observation in the laboratory. Anobium larvae were placed individually in channels gouged in the surface of 3-inch squares of plywood. They were covered with tracing paper and the parasites were caged on this by means of a glass ring covered with a glass plate. Development from egg to adult at 22 and 25°C., and 75 per cent, relative humidity, averaged about five and six weeks, respectively, compared with 12 weeks outdoors in summer. The number of progeny per female was highest (approximately five) at 22°C., at which the ratio of males to females was 1:3. Only about one per cent, of the adults reared were winged. The use of Theocolax as a biological-control agent is not considered practical.

Fundamental Host Range ofLeptoypha hospita(Hemiptera: Tingidae), a Potential Biological Control Agent of Chinese Privet

2016 ◽  
Vol 45 (4) ◽  
pp. 897-908 ◽  
Author(s):  
Yanzhuo Zhang ◽  
James L. Hanula ◽  
Scott Horn ◽  
Cera Jones ◽  
S. Kristine Braman ◽  
...  
Keyword(s):  
Biological Control ◽  
Host Range ◽  
Biological Control Agent ◽  
Control Agent ◽  
Chinese Privet ◽  
Fundamental Host Range

Biology of Host Range Testing for Biocontrol of Weeds

1990 ◽  
Vol 4 (3) ◽  
pp. 465-470 ◽  
Author(s):  
Gregory J. Weidemann ◽  
David O. Tebeest
Keyword(s):  
Biological Control ◽  
Host Range ◽  
Biological Control Agent ◽  
Full Range ◽  
Control Agent ◽  
Wild Plants ◽  
Weed Host ◽  
Close Phylogenetic Relationship ◽  
Related Plant

The determination of host range is an important component in developing a plant pathogen for use as a bioherbicide. The safety of non-target economic and wild plants must be assured before experimental release and commercial use. In contrast to other methods of weed control, the genetic variability and genetic stability of both the weed and the biological control agent must be considered. Schemes to determine host range generally assume a close phylogenetic relationship between the weed host and its co-evolved pathogens. Therefore, testing generally is based on inoculation of genetically related plant species and progresses to more distantly related species until the host range is circumscribed. Several potential weaknesses in these schemes will be illustrated with examples using specific biological control agents. Future tests must place greater emphasis on testing taxa representing the full range of genetic diversity within the biogeographic area of intended use.

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