Habitat difference in abundance of willow leaf beetle Phratora vulgatissima (Coleoptera: Chrysomelidae): plant quality or natural enemies?

2006 ◽  
Vol 96 (6) ◽  
pp. 629-635 ◽  
Author(s):  
P. Dalin
Keyword(s):  
Natural Enemies ◽  
Leaf Beetle ◽  
Plant Quality ◽  
Habitat Difference ◽  
Willow Leaf Beetle

Localized outbreak of a willow leaf beetle: plant vigor or natural enemies?

2000 ◽  
Vol 42 (1) ◽  
pp. 0091
Author(s):  
C. Björkman ◽  
B. Bengtsson ◽  
H. Häggström
Keyword(s):  
Natural Enemies ◽  
Leaf Beetle ◽  
Plant Vigor ◽  
Willow Leaf Beetle

Localized outbreak of a willow leaf beetle: plant vigor or natural enemies?

2000 ◽  
Vol 42 (1) ◽  
pp. 91-96 ◽  
Author(s):  
C. Bj�rkman ◽  
B. Bengtsson ◽  
H. H�ggstr�m
Keyword(s):  
Natural Enemies ◽  
Leaf Beetle ◽  
Plant Vigor ◽  
Willow Leaf Beetle

An Artificial Diet for Cottonwood and Imported Willow Leaf Beetles (Coleoptera: Chrysomelidae) and Comparative Performance on Poplar Foliage2

1990 ◽  
Vol 25 (3) ◽  
pp. 475-480 ◽  
Author(s):  
Leah S. Bauer ◽  
Joann Meerschaert ◽  
O. Thomas Forrester
Keyword(s):  
Artificial Diet ◽  
Leaf Beetle ◽  
Adult Longevity ◽  
Comparative Performance ◽  
Laboratory Rearing ◽  
Leaf Beetles ◽  
Chrysomela Scripta ◽  
The Media ◽  
Cottonwood Leaf Beetle ◽  
Willow Leaf Beetle

An artificial diet was developed for laboratory rearing of the cottonwood leaf beetle, Chrysomela scripta F., and the imported willow leaf beetle, Plagiodera versicolora (Laicharting). To reduce microbial contamination of the media, procedures were developed for separating egg masses and sterilizing egg surfaces. Cottonwood leaf beetle larvae reared from neonate to adult on this artificial diet had greater mortality, took longer to develop, and were smaller than larvae reared on fresh poplar foliage. Adult longevity was similar for both diet-and foliage-reared larvae. Survival and adult fresh weight of imported willow leaf beetle larvae reared on the artificial diet were similar to those of cohorts reared on fresh poplar foliage. However, individuals reared on artificial diet took longer to develop and produced shorter-lived adults than cohorts reared on foliage. Larvae of both species would not eat fresh foliage after being fed on the artificial diet. Adults of both species maintianed on the artificial diet laid few eggs but resumed normal oviposition when fed fresh foliage. This artificial diet proved useful for rearing larvae and maintaining adults during periods when fresh foliage was limited.

The effects of plant quality on caterpillar growth and defense against natural enemies

Oikos ◽  
2006 ◽  
Vol 115 (2) ◽  
pp. 219-228 ◽  
Author(s):  
P. D. Coley ◽  
M. L. Bateman ◽  
T. A. Kursar
Keyword(s):  
Natural Enemies ◽  
Plant Quality

scholarly journals Meta-Analysis Suggests Differing Indirect Effects of Viral, Bacterial, and Fungal Plant Pathogens on the Natural Enemies of Insect Herbivores

Insects ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 765
Author(s):  
Ussawit Srisakrapikoop ◽  
Tara J. Pirie ◽  
Mark D. E. Fellowes
Keyword(s):  
Natural Enemies ◽  
Indirect Effects ◽  
Plant Pathogens ◽  
Meta Analysis ◽  
Trophic Levels ◽  
Plant Diseases ◽  
Plant Quality ◽  
Insect Herbivore ◽  
Insect Herbivores ◽  
Fungal Plant Pathogens

Indirect effects are ubiquitous in nature, and have received much attention in terrestrial plant–insect herbivore–enemy systems. In such tritrophic systems, changes in plant quality can have consequential effects on the behavior and abundance of insect predators and parasitoids. Plant quality as perceived by insect herbivores may vary for a range of reasons, including because of infection by plant pathogens. However, plant diseases vary in their origin (viral, bacterial or fungal) and as a result may have differing effects on plant physiology. To investigate if the main groups of plant pathogens differ in their indirect effects on higher trophic levels, we performed a meta-analysis using 216 measured responses from 29 primary studies. There was no overall effect of plant pathogens on natural enemy traits as differences between pathogen types masked their effects. Infection by fungal plant pathogens showed indirect negative effects on the performance and preference of natural enemies via both chewing and piercing-sucking insect herbivore feeding guilds. Infection by bacterial plant pathogens had a positive effect on the natural enemies (parasitoids) of chewing herbivores. Infection by viral plant pathogens showed no clear effect, although parasitoid preference may be positively affected by their presence. It is important to note that given the limited volume of studies to date on such systems, this work should be considered exploratory. Plant pathogens are very common in nature, and tritrophic systems provide an elegant means to examine the consequences of indirect interactions in ecology. We suggest that further studies examining how plant pathogens affect higher trophic levels would be of considerable value.

Sign in / Sign up

Export Citation Format

Share Document