Results 71 to 80 of about 78,391 (332)

Cleogonus insulcatus Fiedler, 1954 (Coleoptera: Curculionidae): first report in Brazil and a new host plant record, Handroanthus impetiginosus (Mart. ex DC.) Mattos

open access: yesEntomological Communications, 2020
The purple trumpet tree [Handroanthus impetiginosus (Mart. Ex DC.) Mattos - Bignoniaceae] is one of the most prominent tree species in the Brazilian Federal District, with more than 150 trees in the Plano Piloto region of Brasília. In March 2017, weevils
Marcelo T Castro   +3 more
doaj   +1 more source

Impact of pine looper defoliation in Scots pine [PDF]

open access: yes, 2003
Widespread defoliation of forests caused by insects or fungi cause economic losses throughout the world. Successful outbreak management involves cost/benefit estimation and requires knowledge of potential yield losses. Currently, such knowledge is scarce.
Cedervind, Jan
core  

“Tremble, pests”: Insect natural enemy‐induced changes in pests before attack and their implications for biological control

open access: yesNew Plant Protection, EarlyView.
Abstract Insect natural enemies, encompassing predators and parasitoids, serve as vital regulators of pest populations and architects of ecosystem balance. Most studies on natural enemies have focused on understanding the mechanisms by which these insects eliminate pests after an attack.
Yaoyao Chen   +3 more
wiley   +1 more source

Development of the solitary larval endoparasitoid Glyptapanteles porthetriae (Hymenoptera: Braconidae) in its host Lymantria dispar (Lepidoptera: Lymantriidae)

open access: yesEuropean Journal of Entomology, 2000
The development of the solitary endoparasitic braconid Glyptapanteles porthetriae in gypsy moth larvae of different ages was studied. Host larvae were parasitized during the premolt to the 2nd instar (A-larvae), to the 3rd instar (B-larvae) or to the 4th
Christa NUSSBAUMER, Axel SCHOPF
doaj   +1 more source

New Reports of Exotic and Native Ambrosia and Bark Beetle Species (Coleoptera: Curculionidae: Scolytinae) From Ohio [PDF]

open access: yes, 2018
In a 2007 survey of ambrosia and bark beetles (Coleoptera: Curculionidae: Scolytinae) along a transect in northeastern Ohio, we collected six exotic and three native species not previously reported from the state.
Cognato, Anthony I   +5 more
core   +2 more sources

Structural stability of plant–pollinator interactions despite seasonal abundance of long‐tongued hawkmoths

open access: yesOikos, EarlyView.
Seasonal environmental cycles affect plant–pollinator interactions by altering plant phenology. Periods of low resource availability can filter pollinators and reduce the complexity of interaction networks, but the extent to which the functional morphology of pollinators influences such filtering remains unclear.
Ugo M. Diniz   +3 more
wiley   +1 more source

Responses of generalist invertebrate predators to pupal densities of autumnal and winter moths under field conditions [PDF]

open access: yes, 2013
1. Generalist natural enemies are usually not considered as being capable of causing population cycles in forest insects, but they may influence the population dynamics of their prey in the low density cycle phase when specialist enemies are largely ...
Ammunét, Tea   +3 more
core  

Simulation of How Jack Pine Budworm (Lepidoptera: Tortricidae) Affects Economic Returns From Jack Pine Timber Production in Michigan [PDF]

open access: yes, 2017
The impact of jack pine budworm on economic returns from jack pine timber production in Lower Michigan and management actions that might be taken to reduce this impact were evaluated with a simulation model.
Mosher, Daniel G   +3 more
core   +2 more sources

Floral resource diversity drives spatiotemporal variation in plant–pollinator network structure

open access: yesOikos, EarlyView.
Mechanisms underlying community assembly, including those related to species interactions, vary across space and time. Plant–pollinator networks exemplify these dynamics, where link rewiring and turnover mediate adaptations to environmental changes. Bees rely on diverse floral resources (e.g.
Caio S. Ballarin   +3 more
wiley   +1 more source

Climatic suitability and spread potential of Anoplophora horsfieldii (Coleoptera: Cerambycidae), a newly identified non-native insect on Jeju Island, Korea

open access: yesScientific Reports
In 2022, the non-native longhorn beetle Anoplophora horsfieldii (Hope) was officially reported on Jeju Island, Korea, marking its first confirmed occurrence outside its native range.
Min-Jung Kim   +5 more
doaj   +1 more source

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