Results 131 to 140 of about 4,521,295 (246)

Effects of Early Season Temperature on Adult Life History Traits of Wheat Stem Sawfly, Cephus cinctus (Hymenoptera: Cephidae) and Bracon cephi (Hymenoptera: Braconidae)

Journal of Applied Entomology, EarlyView.
ABSTRACT Wheat stem sawfly, Cephus cinctus Norton (Hymenoptera: Cephidae), is a long‐standing and serious pest of wheat, Triticum aestivum Linnaeus (Poaceae), in the northern Great Plains region of North America. Over the last decade, research efforts have aimed to better understand C.
Dylan M. Sjolie, Christian J. Willenborg, Meghan A. Vankosky   +2 more
wiley   +1 more source

Community variability in aphid parasitoids versus predators in response to agricultural intensification

, 2014
Agricultural intensification (AI) is a great threat to biodiversity and its negative effects on species richness of different communities have been repeatedly shown.
Gagic, Vesna,, Sveriges lantbruksuniversitet.   +1 more
core   +1 more source

First Record of Larval Parasitism in Disonycha glabrata (F.) (Coleoptera: Chrysomelidae) by Myiopharus ancilla (Walker) (Diptera: Tachinidae)

Journal of Applied Entomology, EarlyView.
ABSTRACT The amaranth flea beetle, Disonycha glabrata (F.), is a major pest of amaranth crops (Amaranthus spp.) in the United States. Despite its economic impact, its natural enemy complex remains poorly documented. In this study, we report the first record of larval parasitism in D. glabrata by the tachinid fly Myiopharus ancilla (Walker).
Yony T. Callohuari, John O. Stireman III, Matthew A. Bertone, Beatrice N. Dingha, Louis E. N. Jackai   +4 more
wiley   +1 more source

Evaluating Bottom‐Up Effects of Cruciferous Cultivars to Optimise Mass‐Rearing and Fitness of the Parasitoid Diadegma insulare

Journal of Applied Entomology, EarlyView.
ABSTRACT The diamondback moth, Plutella xylostella (L.) (Plutellidae: Lepidoptera), is one of the major pests of cruciferous vegetables. To control this notorious pest, the caterpillar parasitoid Diadegma insulare (Cresson) (Ichneumonidae: Hymenoptera) is the most used biocontrol agent. Efficient mass‐rearing of D.
Muhammad Sajid Qureshi, Ata ul Mohsin, Raimondas Mozūraitis   +2 more
wiley   +1 more source

Host Searching by Egg Parasitoids: Exploitation of Host Chemical Cues

, 2010
Insect parasitoids are considered “keystone species” in many ecosystems in terms of biodiversity, ecological impact and economic importance (Vinson 1985, LaSalle and Gauld 1993, Hawkins et al. 1999).
COLAZZA, Stefano, SALERNO, G, CONTI, E., PERI, Ezio   +3 more
core   +1 more source

Going silent? Evidence for independent losses of acoustic communication in tree crickets (Insecta, Orthoptera, Grylloidea, Oecanthidae)

Journal of Systematics and Evolution, EarlyView.
Our ancestral state reconstruction in tree crickets reveals multiple independent and irreversible losses of sound‐producing and ‐receiving structures, supporting the convergent evolution of the silent phenotype. We demonstrate strong evolutionary integration between forewings and tympana, although the discovery of ‘silent listeners′ and ‘deaf singers ...
Lucas Denadai de Campos, Jorge Alves Audino, Silvio Shigueo Nihei, Laure Desutter‐Grandcolas   +3 more
wiley   +1 more source

Integrative revision of the Australian carrion‐breeding Calliphorinae (Diptera: Calliphoridae): Revision of the Calliphora stygia‐ and ochracea‐groups

Medical and Veterinary Entomology, EarlyView.
The Australian carrion‐breeding Calliphorinae are revised using an integrative approach combining morphology and mitogenomics. A new taxonomic key, morphological images and verified mitogenomic data, including COX1 barcodes, are provided to support the identification of species.
Liam B. D. C. Foley, James F. Wallman, Krzysztof Szpila, Kelly A. Meiklejohn, Nikolas P. Johnston   +4 more
wiley   +1 more source

A Repertoire of Major Genes From Crop Wild Relatives for Breeding Disease‐Resistant Wheat, Rice, Maize, Soybean and Cotton Crops

Plant Breeding, EarlyView.
ABSTRACT Global food demand is predicted to rise anywhere from 59% to 98% by 2050 because of increasing population. However, the continued depletion of natural resources and increasing biotic and abiotic stresses will continue to pose significant threats to global food security in coming years.
Memoona Khalid, Hafiz Mamoon Rehman, Tsz‐Yan Cheung, Shakeel Ahmed, Ting Fung Chan, Hon‐Ming Lam   +5 more
wiley   +1 more source

Disruption of Fatty Acid Desaturase Gene Alters Aphid Resistance and Volatile Emissions in Sorghum

Plant, Cell &Environment, EarlyView.
ABSTRACT Jasmonic acid (JA)‐deficient msd3 sorghum mutants exhibit contrasting resistance phenotypes against sugarcane aphids (SCA; Melanaphis sacchari), which promotes aphid settling at early time points while providing antibiosis‐mediated resistance at later stages. Here we investigated the physiological, hormonal, and metabolic mechanisms underlying
Sajjan Grover, Heena Puri, Sanket Shinde, Krishnarao Gandham, Rupesh Kariyat, Zhanguo Xin, Scott E. Sattler, Joe Louis   +7 more
wiley   +1 more source

The influence of aphid polyphenism on life histories and oviposition decisions of (hyper)parasitoids

, 2018
Aphids are attacked by a broad range of natural enemies, notably parasitoids. These insects lay their egg inside aphids and the larva feed on aphid haemolymph and tissues.
Pirotte, Jennifer
core