Results 71 to 80 of about 19,800 (270)

PREVALENCE OF HEAD LICE AMONG SCHOOL CHILDREN

open access: yesGomal Journal of Medical Sciences, 2016
Background: Pediculosis is a common public health problem affecting school children. The objective of this study was to determine the overall prevalence of pediculosis in school children and comparison between sex, age groups, and income groups ...
Mushtaq Hussain Lashari   +7 more
doaj  

The parasitism of Persian jird by immature stages of Hyalomma asiaticum (Acari: Ixodidae) and its identification using molecular approaches in Iran

open access: yesPersian Journal of Acarology, 2018
In the present study, occurrence of Hyalomma asiaticum on wild rodents was explored. Rodents were trapped using Sherman traps. The tick specimens were collected by forceps from the rodents.
Asadollah Hosseini Chegeni   +4 more
doaj   +1 more source

Calcitonin‐like diuretic hormone influences reproduction in adult female Rhodnius prolixus

open access: yesInsect Science, EarlyView.
Highlights • CT/DH‐like immunoreactivity is present in female reproductive tissues • CT/DH receptor transcripts are expressed in the fat body and ovaries • RNAi knockdown of CT/DH receptors reduces egg number and hatching rate • Rhopr‐CT/DH increases RhoprVg1 and RhoprVgR expression in ovaries in vitro • Rhopr‐CT/DH stimulates oviduct contractions in a
Areej N. Al‐Dailami   +2 more
wiley   +1 more source

“Alien versus predator”: predatory effect of coccinellid Exochomus quadripustulatus on the scale insect Toumeyella parvicornis. An open‐field experimentation on the Pinus pinea of Rome

open access: yesInsect Science, EarlyView.
The release of gravid Exochomus quadripustulatus females proved to be effective in containing Toumeyella parvicornis infestations on stone pine trees, under open‐field condition. The ladybugs caused a lower infestation level compared to the trees that did not receive any ladybugs during the observation season.
Nicolò Di Sora   +4 more
wiley   +1 more source

01: The Nymph

open access: yes, 2008
This exuvia (shed skin) shows the form of a typical dragonfly nymph. Nymphs, which begin life as a small egg deposited in the water, develop as aquatic insects for about a year.
Gorga, Frank
core   +1 more source

LsFAMeT and LsJHAMT coordinate JH biosynthesis to regulate fecundity in Laodelphax striatellus

open access: yesInsect Science, EarlyView.
The small brown planthopper (SBPH), Laodelphax striatellus, can trigger large‐scale outbreaks when encountering suitable habitats during migration due to their strong reproductive ability. This study investigated the role of juvenile hormone (JH) in regulating SBPH reproduction.
Yan Guo   +3 more
wiley   +1 more source

Brown Marmorated Stink Bug Nymph

open access: yes, 2016
Brown marmorated stink bug nymph on ...

core  

Ant–aphid mutualism: the influence of Tapinoma ibericum (Hymenoptera: Formicidae) on Aphis gossypii (Hemiptera: Aphidae) control by commercial and spontaneous natural enemies

open access: yesInsect Science, EarlyView.
The mutualism between Tapinoma ibericum ants and Aphis gossypii disrupts the biological control exerted by Aphidius colemani in greenhouse peppers. Ant exclusion increased parasitism and the presence of most natural enemies, although Aphidoletes aphidimyza was more abundant with ants.
Jesús Foronda   +7 more
wiley   +1 more source

Nymph I Line Drawing

open access: yes, 2016
Line drawn illustration of nymph I pea aphid (Acyrthosiphon pisum) developing into apterous adult.
Levitis, Daniel   +2 more
core   +1 more source

Comparative Morphology and Morphometry of Six Biotypes of Bemisia tabaci (Hemiptera: Aleyrodidae) from China

open access: yesJournal of Integrative Agriculture, 2013
Morphology and morphometry of six biotypes (B, Q, Cv, ZHJ-1, ZHJ-2 and ZHJ-3) of Bemisia tabaci (Gennadius) from China on cotton plants were studied by using microscopes. Nymphal body sizes and characters were measured and observed, especially on the 4th
Jing-jing LI   +6 more
doaj   +1 more source

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