Results 21 to 30 of about 61,394 (166)

Companion Plants for Aphid Pest Management [PDF]

open access: yesInsects, 2017
A potential strategy for controlling pests is through the use of “companion plants” within a crop system. This strategy has been used in several trials to fight against a major crop insect pest: the aphid. We reviewed the literature to highlight the major mechanisms by which a companion plant may act.
Ben Issa, Refka   +2 more
openaire   +5 more sources

Photonic crystals and insects vision

open access: yesBulletin of the National Research Centre
Background Most insects have compound eyes to enable them to see accurately, especially at night. In order to be able to see well, these eyes must be provided with some special structures, such as photonic crystals.
Mohamed Ragaei   +3 more
doaj   +1 more source

Insecticidal effects of nano-encapsulated lemongrass essential oil on the population parameters of Spodoptera frugiperda using two-sex life table

open access: yesScientific Reports
Essential oils derived from plants have demonstrated their efficacy in controlling insects; however, their poor physical characteristics restrict their widespread application.
Samar Sayed Ibrahim   +2 more
doaj   +1 more source

Contribution of Tomato torrado virus Vp26 coat protein subunit to systemic necrosis induction and virus infectivity in Solanum lycopersicum

open access: yesVirology Journal, 2019
Background Tomato torrado virus (ToTV) infection manifests with burn-like symptoms on leaves, leaflets and upper stem parts of susceptible infected plants.
Przemysław Wieczorek   +4 more
doaj   +1 more source

Formulation for foliar and soil application of entomopathogenic nematodes for controlling the onion thrips Thrips tabaci Lindeman (Thysanoptera: Thripidae)

open access: yesEgyptian Journal of Biological Pest Control
Background Onion thrips (Thrips tabaci Lindeman) are a main threat to onion (Allium cepa L.) production worldwide. Entomopathogenic nematodes (EPNs) are recommended as environmentally acceptable alternatives to chemical management for a wide range of ...
Hala M. S. Metwally   +2 more
doaj   +1 more source

Comparison between using of nanochitosan and nanostarch as the polymers in pesticide nanoformulations synthesis

open access: yesDiscover Nano
Chitosan, as a natural polysaccharide is considered the main polymer in nanopesticide formulation synthesis. As a result of the high price of chitosan, it’s badly needed to find another polymer that is cheap and at the same time effective.
Al-kazafy Hassan Sabry   +2 more
doaj   +1 more source

Role of photosensitizer in control of mealybug and scale insects (Homoptera: Margarodidae and Diaspididae), in comparison with conventional insecticide

open access: yesBulletin of the National Research Centre
Background Two photosensitizer agents were used: rose bengal and eosin alone and mixed with soap. Two other chemical compounds were used: active cable oil and soap. All these materials were compared with malathion as a conventional insecticide.
Hamdy Abdel-Naby Salem   +2 more
doaj   +1 more source

Biochemical characterization of spiromesifen and spirotetramat as lipid synthesis inhibitors on cotton leaf worm, Spodoptera littoralis

open access: yesBulletin of the National Research Centre, 2019
Background Two lipid synthesis inhibitors compounds (spiromesifen SPM and spirotetramat SPT) were used against the second instar larvae of cotton leaf worm, Spodoptera littoralis under laboratory condition. Toxicity of both compounds was tested.
Ragaei M. Abdel-Fatah   +3 more
doaj   +1 more source

Identification and Validation of Reference Genes for Quantitative Gene Expression Analysis in Ophraella communa

open access: yesFrontiers in Physiology, 2020
Ophraella communa is an effective bio-control agent of the invasive common weed. By now, the reference genes in O. communa have not yet been screened and validated.
Yan Zhang   +13 more
doaj   +1 more source

Assessment of some new pesticides as molluscicides against the adult and eggs of chocolate banded snail, Eobania vermiculata

open access: yesBulletin of the National Research Centre, 2019
Background Land snails, especially the chocolate banded snails, Eobania vermiculata are destructive pests of a wide range of field and vegetable crops.
Mona A. Hussein, Al-Kazafy H. Sabry
doaj   +1 more source

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