Immunity of an insect herbivore to an entomovirus is affected by different host plants

2019 ◽  
Vol 76 (3) ◽  
pp. 1004-1010
Author(s):  
Jin‐Yan Wang ◽  
Hao Zhang ◽  
Evan Siemann ◽  
Xiang‐Yun Ji ◽  
Yi‐Juan Chen ◽  
...  
Keyword(s):  
Host Plants ◽  
Insect Herbivore

ECOLOGICAL COSTS ON LOCAL ADAPTATION OF AN INSECT HERBIVORE IMPOSED BY HOST PLANTS AND ENEMIES

Ecology ◽  
2008 ◽  
Vol 89 (5) ◽  
pp. 1388-1398 ◽  
Author(s):  
Daniel Zovi ◽  
Michael Stastny ◽  
Andrea Battisti ◽  
Stig Larsson
Keyword(s):  
Local Adaptation ◽  
Host Plants ◽  
Insect Herbivore

Insect herbivore stoichiometry: the relative importance of host plants and ant mutualists

2008 ◽  
Vol 33 (4) ◽  
pp. 497-502 ◽  
Author(s):  
PATRICK ABBOT ◽  
JOSH GRINATH ◽  
JULIA BROWN ◽  
EMILY PEEDEN ◽  
DAN ERICKSON ◽  
...  
Keyword(s):  
Host Plants ◽  
Insect Herbivore ◽  
Relative Importance

scholarly journals The nutritional landscape of host plants for a specialist insect herbivore

2019 ◽  
Vol 9 (23) ◽  
pp. 13104-13113 ◽  
Author(s):  
Jerome Keaton Wilson ◽  
Laura Ruiz ◽  
Jesse Duarte ◽  
Goggy Davidowitz
Keyword(s):  
Host Plants ◽  
Insect Herbivore ◽  
Specialist Insect

Response of an insect herbivore to host plants grown in carbon dioxide enriched atmospheres

Oecologia ◽  
1986 ◽  
Vol 69 (4) ◽  
pp. 556-560 ◽  
Author(s):  
D. E. Lincoln ◽  
D. Couvet ◽  
N. Sionit
Keyword(s):  
Carbon Dioxide ◽  
Host Plants ◽  
Insect Herbivore

Freedom to move: Arctic caterpillar (Lepidoptera) growth rate increases with access to new willows (Salicaceae)

2016 ◽  
Vol 148 (6) ◽  
pp. 673-682 ◽  
Author(s):  
Christopher J. Greyson-Gaito ◽  
Matthew A. Barbour ◽  
Mariano A. Rodriguez-Cabal ◽  
Gregory M. Crutsinger ◽  
Gregory H.R. Henry
Keyword(s):  
Growth Rate ◽  
Host Plant ◽  
Natural Enemies ◽  
Host Plants ◽  
Growing Season ◽  
The Arctic ◽  
Insect Herbivore ◽  
Insect Herbivores ◽  
Common Behaviour ◽  
Gynaephora Groenlandica

AbstractMovement between host plants during the growing season is a common behaviour among insect herbivores, although the mechanisms promoting these movements are poorly understood for many systems. Two possible reasons why insect herbivores relocate include compensating for host plant quantity and/or quality changes and the avoidance of natural enemies. The Arctic caterpillar (Gynaephora groenlandica (Wocke); Lepidoptera: Lymantriidae) moves several metres each day, feeds on its patchily distributed host plant, Arctic willow (Salix arctica Pallas; Salicaceae), and has two main natural enemies, the parasitoids Exorista thula Wood (Diptera: Tachinidae) and Hyposoter diechmanni (Nielsen) (Hymenoptera: Ichneumonidae). We physically moved caterpillars between Arctic willows and restricted other caterpillar individuals each to a single willow throughout the active period of Arctic caterpillars. We found that growth rate, herbivory rate, and the proportion of available leaf fascicles eaten were higher for experimentally moved caterpillars. Parasitoid abundances were low and did not differ between experimentally moved and stationary caterpillars. Taken together, our study addresses the bottom–up and top–down controls on insect herbivore movement during the short duration of the growing season in the Arctic. Our results suggest that caterpillars are likely moving to new willow shrubs to access high quality resources.

Plant iron acquisition strategy exploited by an insect herbivore

Science ◽  
2018 ◽  
Vol 361 (6403) ◽  
pp. 694-697 ◽  
Author(s):  
L. Hu ◽  
P. Mateo ◽  
M. Ye ◽  
X. Zhang ◽  
J. D. Berset ◽  
...  
Keyword(s):  
Iron Uptake ◽  
Host Plants ◽  
Iron Acquisition ◽  
Insect Herbivore ◽  
Insect Herbivores ◽  
Corn Rootworm ◽  
Specialist Herbivore ◽  
Maize Plants ◽  
Acquisition Strategy ◽  
Root Feeding

Insect herbivores depend on their host plants to acquire macro- and micronutrients. Here we asked how a specialist herbivore and damaging maize pest, the western corn rootworm, finds and accesses plant-derived micronutrients. We show that the root-feeding larvae use complexes between iron and benzoxazinoid secondary metabolites to identify maize as a host, to forage within the maize root system, and to increase their growth. Maize plants use these same benzoxazinoids for protection against generalist herbivores and, as shown here, for iron uptake. We identify an iron transporter that allows the corn rootworm to benefit from complexes between iron and benzoxazinoids. Thus, foraging for an essential plant-derived complex between a micronutrient and a secondary metabolite shapes the interaction between maize and a specialist herbivore.

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