Results 91 to 100 of about 203,044 (309)

Determination of Larval Instars of Dastarcus helophoroides (Coleoptera: Bothrideridae) Using Head Capsule Width Frequency Distribution

open access: yesInsects
Long-horned beetles are among the major insect pests that can cause significant economic and ecological damage globally. The control of long-horned beetles is crucial to sustain the forest ecosystem.
Tayyab Shaheen   +5 more
doaj   +1 more source

The efficiency of Paecilomyce farinosus as biocontrol to larve stage on second ad sixith instar larve of Trogoderma granarium (Everts)

open access: yesمجلة بغداد للعلوم, 2013
The present study was conducted to determine the pathogenicity of Paecilomyces farinosus as biocontrol agents against Tragoderma granarium (khapra) under laboratory conditions with three concentrations ( 2.8 x 108 , 2.8 x 106 ,2.8 x104 spores/ ml). The
Baghdad Science Journal
doaj   +1 more source

Mortality reduction in yellowtail kingfish (Seriola lalandi) larval rearing by optimising Artemia feeding regimes [PDF]

open access: yes, 2012
Mortality is a major concern in larval fish rearing during exogenous feeding. An important cause of mortality of larval yellowtail kingfish (Seriola lalandi) during the rotifer - Artemia weaning period was hypothesised as being due to larval sinking ...
Partridge, G.J.   +2 more
core  

Changes in biomass, lipid, fatty acid and elemental composition during the abbreviated larval development of the subantarctic shrimp Campylonotus vagans [PDF]

open access: yes, 2004
Ontogenetic changes in biomass and chemical composition were studied in the laboratory during the abbreviated larval and early juvenile development of the caridean shrimp Campylonotus vagans from the subantarctic Beagle Channel, Argentina.
Torres, G.   +7 more
core   +1 more source

Behavioural manipulation of the cabbage stem flea beetle (Psylliodes chrysocephala L): Prospects for push–pull strategies in oilseed rape

open access: yesPest Management Science, EarlyView.
Behavioural manipulation of Psylliodes chrysocephala provides promising opportunities for sustainable pest management in oilseed rape systems. This review synthesises evidence on glucosinolates and their volatile isothiocyanate derivatives as phagostimulants and attractants, alongside the repellent or antifeedant effects of non‐host plants, plant ...
Suleiman Mustapha   +6 more
wiley   +1 more source

Microbial Gut Diversity of Africanized and European Honey Bee Larval Instars

open access: yesPLoS ONE, 2013
The first step in understanding gut microbial ecology is determining the presence and potential niche breadth of associated microbes. While the core gut bacteria of adult honey bees is becoming increasingly apparent, there is very little and inconsistent information concerning symbiotic bacterial communities in honey bee larvae.
Vojvodic, Svjetlana   +2 more
openaire   +5 more sources

Validation of a novel bioassay method for the evaluation of the activity of slow‐acting insecticides on tomato borer Phthorimaea absoluta

open access: yesPest Management Science, EarlyView.
Extended bioassays revealed that azadirachtin and spirotetramat show strong delayed effects against Phthorimaea absoluta, underestimated by the standard Insecticide Resistance Action Committee (IRAC) method 022 protocol. Incorporating long‐term exposures is essential to accurately assess slow‐acting insecticides and improve resistance management ...
Marianna Stavrakaki   +7 more
wiley   +1 more source

Volatiles from Different Instars of Honeybee Worker Larvae and Their Food

open access: yesInsects, 2019
(E)-β-Ocimene was the only volatile chemical found to be emitted by whole, live worker larvae of Apis mellifera L. when sampling in the vapor phase.
Haohao Zhang   +6 more
doaj   +1 more source

Growth and Duration of Larval Instars of the Cowpea Weevil, Callosobruchus quadrimaculatus

open access: yesJapanese journal of applied entomology and zoology, 1959
ヨツモンマメゾウムシの4地理的系統の幼虫の成長を頭巾について調べた。いずれも4令期があり頭巾はGAINES & CAMPBELLの式によい一致を示して成長する。成虫の体の大きさと孵化幼虫のそれとの間には逆の関係があり。幼虫期間には体の大きさと成長比との間に補償的な関連が認められた。各令期の発育日数も求めたがこれというはっきりした関係は認められなかった。
UTIDA, Syunro, KAKEMI, Hukiko
openaire   +2 more sources

Fussy feeders: Phyllosoma larvae of the Western Rocklobster (Panulirus cygnus) demonstrate prey preference [PDF]

open access: yes, 2012
The Western Rocklobster (Panulirus cygnus) is the most valuable single species fishery in Australia and the largest single country spiny lobster fishery in the world.
Waite, A.M.   +34 more
core   +3 more sources

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