Introduction, Establishment, and Potential Geographic Range of Carmenta sp. nr ithacae (Lepidoptera: Sesiidae), a Biological Control Agent for Parthenium hysterophorus (Asteraceae) in Australia

2012 ◽  
Vol 41 (2) ◽  
pp. 317-325 ◽  
Author(s):  
K. Dhileepan ◽  
M. Trevino ◽  
M. P. Vitelli ◽  
K.A.D. Wilmot Senaratne ◽  
A. S. Mcclay ◽  
...  
1990 ◽  
Vol 80 (4) ◽  
pp. 427-432 ◽  
Author(s):  
A. S. McClay ◽  
R. E. McFadyen ◽  
J. D. Bradley

AbstractBucculatrix parthenica Bradley sp. n., a moth native to Mexico, is described. It has been released and established in Queensland, Australia, as a biological control agent for its host plant, Parthenium hysterophorus. The moth oviposits on leaves of its host. First and second instar larvae are leaf miners, and later instars feed externally on the leaves. The life cycle occupies about 25 days under field conditions. B. parthenica was narrowly oligophagous in host-specificity tests. In Mexico the insect is scarce but in Queensland it has become abundant enough to cause extensive defoliation of its host plant at some sites. Its rapid increase in Queensland is attributed to the absence of parasitism.


1993 ◽  
Vol 83 (3) ◽  
pp. 383-388 ◽  
Author(s):  
K. P. Jayanth ◽  
Geetha Bali

AbstractZygogramma bicolorata Pallister was introduced for biological control trials against the weed Parthenium hysterophorus (Asteraceae) in India. The insect entered diapause over an extended period of time between July and December in Bangalore. Diapausing adults burrowed into the soil, and emerged in May–June with the commencement of monsoon rains. Percentage diapause increased over time, peaking at 72% during November. Non-diapausing adults were capable of breeding, under laboratory conditions, during the winter. Some adults bred both before and after diapause, during two consecutive years. Soil moisture played an important role in providing the conditions for burrowing or emerging from the diapause chambers. The studies also showed that diapausing adults had to be exposed to the high summer temperatures, for termination of the diapause. It was possible to break diapause by continuous exposure to 30°C, 35°C and 40°C for 22 days, nine days and 10 hours, respectively, during February–March, about three months after its inception. This method can be used to initiate mass multiplication for carrying out releases early in the season.


2017 ◽  
Vol 57 (2) ◽  
pp. 677-712 ◽  
Author(s):  
Alena Samková ◽  
Petr Janšta ◽  
John T. Huber

A neotype for Anaphes flavipes (Foerster, 1841) (Hymenoptera: Mymaridae), a biological control agent of Oulema melanopus (Linnaeus, 1758) (Coleoptera: Chrysomelidae), is designated. The extensive literature on A. flavipes is compiled and the morphological variability of selected morphological structures of numerous reared specimens from across its presently known geographic range (mainly eastern Nearctic and western Palearctic) is described. Anaphes flavipes is compared with what appears to be morphologically and biologically the most similar species, A. nipponicus Kuwayama, 1932, from Japan, which is briefly redescribed. Anaphes auripes Walker, 1846, syn. nov., is placed in synonymy under A. flavipes. The following new country and state records for A. flavipes are provided: Czech Republic, Ukraine, Canada (Nova Scotia), USA (Virginia).


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