Results 71 to 80 of about 43,241 (262)

Herbivory by a phloem-feeding insect inhibits floral volatile production [PDF]

open access: yes, 2012
There is extensive knowledge on the effects of insect herbivory on volatile emission from vegetative tissue, but little is known about its impact on floral volatiles.
Webster Ben   +29 more
core   +1 more source

Soybean induced resistance to Spodoptera eridania herbivory

open access: yesPest Management Science, EarlyView.
SOD, CAT, APX, PPO, KTI, and MDA levels were higher in the resistant soybean. S. eridania herbivory increased H2O2 and MDA, but decreased SOD and PPO levels. S. eridania herbivory increased KTI activity only in the resistant variety. Isoquercitrin and daidzin were exclusive to resistant and susceptible soybeans.
Bruno Henrique Sardinha de Souza   +6 more
wiley   +1 more source

Pandora neoaphidis transmission and aphid foraging behaviour [PDF]

open access: yes, 2005
Pandora neoaphidis is an aphid-specific entomopathogen that produces infective conidia. As aphid movement increases, so does the likelihood of contact with conidia.
Alderson, P. G.   +2 more
core   +1 more source

Cannibalism in Buchananiella whitei (Hemiptera: Anthocoridae) and its intraguild interactions with seven predatory mites (Acari: Phytoseiidae & Laelapidae)

open access: yesPest Management Science, EarlyView.
Extraguild prey reduces cannibalism and intraguild predation in Buchananiella whitei, while first‐instar nymphs dominate most predatory mites, with outcomes affected by body size and behavioral traits. Abstract BACKGROUND Cannibalism and intraguild predation (IGP) are common interactions among predators that can influence the effectiveness of ...
Yuzhi Gong   +3 more
wiley   +1 more source

Repellency, Toxicity, Gene Expression Profiling and In Silico Studies to Explore Insecticidal Potential of Melaleuca alternifolia Essential Oil against Myzus persicae

open access: yesToxins, 2018
In the current study, deterrent assay, contact bioassay, lethal concentration (LC) analysis and gene expression analysis were performed to reveal the repellent or insecticidal potential of M. alternifolia oil against M. persicae. M.
Talha Ali Chohan   +5 more
doaj   +1 more source

Endophytic fungi from two isolated Bethencourtia palmensis populations: metabolomic and bioactivity fingerprinting

open access: yesPest Management Science, EarlyView.
We compared two island populations of Bethencourtia palmensis and their culturable endophytic fungi, revealing distinct plant chemistries and a higher biopesticidal potential in the endophytic fungi from La Palma population along with high potential for the discovery of novel compounds.
Jorge Rojas López‐Menchero   +4 more
wiley   +1 more source

Soybean Aphid in Minnesota [PDF]

open access: yes, 2003
The soybean aphid (Aphis glycines) is an eastern Asian soybean pest that is rapidly invading the United States. A recent immigrant, it was first detected in nine midwestern states including Minnesotain the summer of 2000.
Ostlie, Ken
core  

Take flight: predation risk induces wing polyphenism and dispersal in the aphid Myzus persicae

open access: yesPest Management Science, EarlyView.
Predator risk above a critical density induces winged morphs in Myzus persicae, promoting dispersal and reducing predation compared with wingless aphids. This density‐dependent phenotypic plasticity enhances survival but may compromise biological control by facilitating aphid dispersal.
Jamin Ali   +5 more
wiley   +1 more source

Was Dan Janzen (1977) right about aphid clones being a "super-organism", i.e. a single "evolutionary individual"? : new insights from the use of molecular marker systems [PDF]

open access: yes, 2008
Dan Janzen proposed in a paper in 1977 (loc. cit.), that a clone of aphids and for that matter dandelions consists, respectively, of one large ‘super-organism’.
Loxdale, H. D.   +2 more
core  

Influence of the aphid pathogen Pandora neoaphidis on the foraging behaviour of the aphid parasitoid Aphidius ervi [PDF]

open access: yes, 2005
1. The parasitoid Aphidius ervi and the entomopathogenic fungus Pandora neoaphidis both require successful invasion of an aphid host to complete their life cycle. A shorter developmental period allows P. neoaphidis to out-compete A. ervi.
Alderson, P. G.   +2 more
core   +1 more source

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