Results 91 to 100 of about 40,824 (309)

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

17‐epi‐Melianodiol, a new protolimonoid from Melia azedarach fruits, exhibits larvicidal activity and is associated with oxidative imbalance and midgut epithelial damage in Aedes aegypti larvae

open access: yesPest Management Science, EarlyView.
The bio‐guided phytochemical study resulted in the new compound 17‐epi‐melianodiol. The compound eliminated 100% of Aedes aegypti larvae at 100 ppm, causing pronounced morphological changes, cuticular damage, and extensive vacuolization. Abstract BACKGROUND In Brazil, Aedes aegypti is the primary vector of arboviruses such as dengue, chikungunya ...
Kethleen Duarte Crespo Soares   +8 more
wiley   +1 more source

Predation Behavior of the Myrmeleon Brasiliensis (Neuroptera: Myrmeleontidae) Larval Instars

open access: yesRevista Colombiana de Entomología, 2011
Myrmeleon brasiliensis larvae are predators that use the sit-and-wait tactic to catch their prey, and to fulfill this pit-making funnel traps in the sandy soil and remain buried waiting for prey to slip. The objective of this study was to observe the predation behavior of larvae of M ...
MODESTO NONATO, LUCIMARA   +1 more
openaire   +2 more sources

Ecological and physiological aspects of aestivation-diapause in the larvae of two Pyralid stalk borers of maize in Kenya

open access: yes, 1978
Stalk borers are highly destructive to a large number of important graminaceous crops all over the world. Some examples of economically important stalk borers and a general description of their life-cycle are mentioned in chapter 1.
Scheltes, P.
core  

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

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

Decrease of fluctuating asymmetry among larval instars in an aquatic, holometabolous insect

open access: yesComptes Rendus. Biologies, 2005
The use of fluctuating asymmetry (FA) to reveal environmental stress in natural populations has been investigated extensively over the past decade. In aquatic ecosystems, many investigations involve amphibiotic insects with larval development stages in freshwater.
Piscart, Christophe   +2 more
openaire   +3 more sources

Field performance of MON 94637 and laboratory evidence supporting a Bt pyramiding strategy against key lepidopteran pests in Brazil

open access: yesPest Management Science, EarlyView.
A genetically modified soybean expressing multiple Cry proteins protects against key lepidopteran pests, consistently reducing larval damage and offering an effective resistance management option for soybean production in Brazil. Abstract BACKGROUND Pyramided Bt genes in crops have been widely adopted to delay insect resistance evolution worldwide. The
Leonardo L Miraldo   +18 more
wiley   +1 more source

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