Results 71 to 80 of about 379,645 (319)

Monitoring the population dynamics of the horse chestnut leafminer Cameraria ohridella with a synthetic pheromone in Europe

open access: yesPlant Protection Science, 2002
A monitoring system for Cameraria ohridella males based on a synthetic sex pheromone was tested in the Czech Republic, Germany, France and Greece. From the obtained data on the insect phenology we concluded that in Central Europe C.
Jiří Kindl   +7 more
doaj   +1 more source

Population management of cone and seed insects in spruce seed orchards [PDF]

open access: yes, 2011
Seed orchards have been established in order to produce high quality seeds for reforestation and forestation. However, seed production in spruce (Picea abies (L.) Karst.) seed orchards is severely hampered by cone- and seed-feeding insects.
Rosenberg, Olle
core  

Honeylocust Twig-gall Midge (Diptera: Cecidomyiidae) in Michigan [PDF]

open access: yes, 2017
Emergence and oviposition data were gathered for Neolasioptera brevis, a recently described pest of honeylocust. In 1984 the insects first emerged on 21 May and first oviposited on 4 June; in 1985 they first emerged on 28 April and first oviposited ...
Morton, H. L, Wertheim, C. G
core   +2 more sources

Growing Degree‐Day Trends Associated With ‘False Springs’ in the Continental United States

open access: yesInternational Journal of Climatology, EarlyView.
Earlier spring warming has increased growing degree‐day (GDD) accumulation prior to the last freeze at some US locations (red circles = stat. sig. increases). However, after accounting for spatial autocorrelation using a false discovery rate approach, few trends remain significant, indicating no coherent continental‐scale increase in false spring risk.
Robert E. Davis   +3 more
wiley   +1 more source

Host–Pest Interactions: Investigating Grapholita molesta (Busck) Larval Development and Survival in Apple Cultivars under Laboratory and Field Conditions

open access: yesHorticulturae
Phenology models are widely used in Decision Support Systems to predict the phenology of pests. Grapholita molesta (Busck) (Lepidoptera: Tortricidae), a polyphagous pest, has a high prevalence in apple trees (Malus domestica Borkh.) (Rosales: Rosaceae ...
Carles Amat   +3 more
doaj   +1 more source

Predators do not spill over from forest fragments to maize fields in a landscape mosaic in central Argentina [PDF]

open access: yes, 2017
South America is undergoing a rapid and large scale conversion of natural habitats to cultivated land. Ecosystem services (ESs) still remain important but their level and sustainability are not known.
Ferrante, Marco   +2 more
core   +1 more source

Contrasting CO2‐response strategies in Pardina lentils: Yield maximization in a commercial cultivar and seed composition adjustment in a landrace

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Assessing crop's responses to elevated carbon dioxide (eCO2) is crucial for global food security. This study examines the impact of eCO2 (700 μmol mol−1) on the cultivars of lentil (Lens culinaris), local Pardina Verde Rayada lentil (PVRL), and commercial Pardina lentil (PL) in terms of the productivity and nutritional composition ...
Mohammad Abdullah   +4 more
wiley   +1 more source

Temperature requirements for immature stages of Sunn Pest, Eurygaster integriceps Puton (Hemiptera: Scutelleridae) [PDF]

open access: yesنامه انجمن حشره‌شناسی ایران
Sunn Pest, Eurygaster integriceps is a serious insect pest of wheat and barley throughout West and Central Asia. Effects of temperature on the development and survival of different stages of E. integriceps were studied.
Masoud Amir Maafi, Bruce L. Parker
doaj   +3 more sources

Interactive Effects of Major Insect Pest of Watermelon on its Yield in Wukari, Nigeria

open access: yesمجلة بغداد للعلوم, 2022
Watermelon is known to be infested by multiple insect pests both simultaneously and in sequence. Interactions by pests have been shown to have positive or negative, additive or non additive, compensatory or over compensatory effects on yields.
Emmanuel Okrikata   +3 more
doaj   +1 more source

Using a social‐ecological macrosystems framework to understand how human activities alter ecological synchrony

open access: yesPeople and Nature, EarlyView.
Abstract Different aspects of ecological systems, biotic or abiotic, often fluctuate in coordinated patterns over space and time. Such high concordance between ecological processes is often referred to as ecological synchrony. Human activities, including and beyond climate change, have the potential to alter ecological synchrony by disrupting or ...
Yiluan Song   +9 more
wiley   +1 more source

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