Plant essential oils from 29 plant species were tested for their insecticidal activities against the Japanese termite, Reticulitermes speratus Kolbe, using a fumigation bioassay. Responses varied with material, exposure time, and concentration. Good activity termite was achived of Melaleuca dissitiflora, uncinata, Eucalyptus citriodora, polybractea, radiata, dives, globulus, Orixa japonica, Cinnamomum cassia, Allium cepa, Illicium verum, Evodia officinalis, Schizonepeta tenuifolia, Cacalia...

The insecticidal activity of materials derived from the fruits Piper nigrum against third instar larvae Culex pipiens pallens, Aedes aegypti, and A. togoi was examined compared with that commercially available piperine, a known compound species. biologically active constituents P. were characterized as isobutylamide alkaloids pellitorine, guineensine, pipercide, retrofractamide A by spectroscopic analysis. Retrofractamide isolated new principle. On basis 48-h LC50 values, most toxic to C....

We evaluated the insecticidal and acetylcholine esterase (AChE) inhibition activity of 11 Apiaceae plant essential oils their constituents in adult male female Blattella germanica. Of tested, dill (Anethum graveolens), carvi (Carum carvi), cumin (Cuminum cyminum) demonstrated >90% fumigant toxicity against German cockroaches at a concentration 5 mg/filter paper. In contact test, cyminum), ajowan (Trachyspermum ammi) produced strong cockroaches. Among test compounds, (S)-(+)-carvone,...

Plant essential oils from 26 plant species were tested for their insecticidal activities against the Japanese termite, Reticulitermes speratus Kolbe, using a fumigation bioassay. Responses varied with source, exposure time, and concentration. Among tested, strong activity was observed of ajowan ( Trachyspermum ammi ), allspice Pimenta dioica caraway Carum carvi dill Anethum graveolens geranium Pelargonium litsea Litsea cubeba ). The composition six identified by gas chromatography-mass...

Abstract Commercial plant essential oils obtained from 11 Myrtaceae species were tested for their antifungal activity against Phytophthora cactorum, Cryponectria parasitica and Fusarium circinatum. Good cactorum was achieved with the oil derived Leptospermum petersonii at 28 × 10 −3 mg/ml air concentration. Inhibition rates of Eucalyptus citriodora Melaleuca quinquenervia 35.4% 33.6% concentration, respectively. In a test C. , inhibition E. L. 29.4% 38.5%, Only showed F. circinatum ....

Commercial essential oils from 28 plant species were tested for their nematicidal activities against the pine wood nematode, Bursaphelenchus xylophilus. Good activity B. xylophilus was achieved with of coriander (Coriandrum sativum), Oriental sweetgum (Liquidambar orientalis), and valerian (Valeriana wallichii). Analysis by gas chromatography-mass spectrometry led to identification 26, 11, 4 major compounds wallichii) oils, respectively. Compounds each oil individually nematode. Among...

This study evaluated the larvicidal activity of 12 Apiaceae plant essential oils and their components against Asian tiger mosquito, Aedes albopictus, inhibition acetylcholine esterase with components. Of tested, ajowan (Trachyspermum ammi), caraway seed (Carum carvi), carrot (Daucus carota), celery (Apium graveolens), cumin (Cuminum cyminum), dill (Anethum parsley (Petroselinum sativum) resulted in >90% larval mortality when used at 0.1 mg/mL. compounds identified, α-phellandrene,...

Abstract Plant essential oils from 43 plant species were tested for their nematicidal activities against the pine wood nematode, Bursaphelenchus xylophilus. Responses varied with material and concentration. Good activity male, female juvenile nematodes of B. xylophilus was achieved Cinnamomum verum, Leptospermum petersonii, Asiasarum sieboldi, Boswellia carterii, Pimenta racemosa, Cymbopogon citratus, Mentha spicata, clove garlic. Garlic cinnamon showed most potent among oils. Analysis by...

Abstract Plant essential oils from 40 plant species were tested for their insecticidal activities against larvae of Lycoriella ingénue (Dufour) using a fumigation bioassay. Good activity L. ingenua was achieved with Chenopodium ambrosioides L., Eucalyptus globulus Labill, smithii RT Baker, horseradish, anise and garlic at 10 5 µL L −1 air. Horseradish, showed the most potent among oils. At 1.25 , caused 100, 93.3 13.3% mortality, but 0.625 air this decreased to 3.3, 0 0% respectively....

The larvicidal activity of 11 Myrtaceae essential oils and their constituents was evaluated against Aedes aegypti L. Of the 11, Melaleuca linariifolia Sm., dissitiflora F. Muell., quinquenervia (Cav.) S. T. Blake, Eucalyptus globulus Labill at 0.1 mg/ml exhibited ≥80% larval mortality. At this same concentration, individual tested, allyl isothiocyanate, α-terpinene, p-cymene, (+)-limonene, (−)-limonene, γ-terpinene, (E)-nerolidol, resulted in ≥95% We also tested acute toxicity these four...

꽃매미의 형태, 생태적 특성 및 살충제의 살충 활성을 조사하였다. 백색으로 부화한 1령 약충은 흑색으로 변하며 흰 반점으로 덮여 있다. 4령 약충 이후에는 붉은색 등에 검은 반점을 띠고, 두 측면에는 날개딱지가 나타난다. 성충의 앞날개는 혁질로 2/3는 옅은 갈색을 띠며 20여개의 반점이 외연부와 시맥에 고루 분포되어있다. 뒷날개의 1/2은 바탕에 7-10개의 반점과 흑갈색을 띠며, 날개의 맥은 흰색의 그물모양을 띤다. 성충은 1년에 1회 발생하였다. 꽃매미 2-3령 약충에 대해 살충활성을 검정한 결과, 텔타메스린, 클로치아니딘액상수화제가 처리 2시간 후 100% 살충율을 보여 약효가 신속하였다. 페니트로치온유제와 이미다크로프리드액제도 약제살포 24시간 100%의 보였으나 치아크로프리드액상수화제는 다른 공시약종에 비해 살충율이 낮았다. Biological Characteristics of Lycorma delicatula and insecticidal activity some...

This study evaluated the larvicidal activity of 20 plant essential oils and components from ajowan ( Trachyspermum ammi ) Peru balsam Myroxylon pereira against mosquito, Aedes aegypti . Of oils, at 0.1 mg/mL exhibited 100 97.5% larval mortality, respectively. At this same concentration, individual constituents, (+)-camphene, benzoic acid, thymol, carvacrol, benzyl benzonate, trans-cinnamate, caused 100% mortality. The toxicity blends constituents identified in two active indicated that...

Commercial plant essential oils obtained from 11 Myrtaceae species were tested for their fumigant antifungal activity against Aspergillus ochraceus, A. flavus, and niger. Essential extracted Leptospermum petersonii at air concentrations of 56 × 10(-3) mg/mL 28 completely inhibited the growth three species. However, an concentration 14 mg/mL, inhibition rates L. reduced to 20.2% 18.8% in case flavus niger, respectively. The other (56 mg/mL) only weakly fungi or had no detectable affect. Gas...

The fumigant and contact toxicities of 16 Asteraceae plant essential oils their constituents against adult male female Blattella germanica were examined. In a toxicity test, tarragon oil exhibited 100% 90% German cockroaches at 5 2.5 mg/filter paper, respectively. Fumigant Artemisia arborescens santolina 20 but reduced to 60% 22.5% 10 tests, showed potent insecticidal activity cockroaches. Components active analyzed using gas chromatography, chromatography-mass spectrometry, or nuclear...

Cellulose nanocrystals (CNCs) are produced by sulfonic acid hydrolysis and used for the formation of Pickering emulsion (PE) with thyme white essential oil (EO). Highly volatile hydrophobic is encapsulated in PE amphiphilicity CNCs. Encapsulation EO a CNC shell determined confocal microscopy distinct fluorescent labelling. The amount affects size distribution PE, stability confirmed rheological property. antimicrobial activity evaluated against Escherichia coli Staphylococcus aureus minimal...

The black pine bast scale,

The insecticidal and fumigant activities of Cinnamomum cassia (Blume) bark-derived materials against the oak nut weevil (Mechoris ursulus Roelofs) were examined using filter paper diffusion fumigation methods compared to those commercially available compounds (eugenol, salicylaldehyde, trans-cinnamic acid, cinnamyl alcohol). biologically active constituent bark was characterized as trans-cinnamaldehyde by spectroscopic analysis. In a test with method, showed 100 83.3% mortality at rates 2.5...

Plant essential oils from 20 plant species were tested for their insecticidal activity against larvae of Lycoriella ingenua (Dufour) (Diptera: Sciaridae) by using a fumigation bioassay. Good (>90%) L. was achieved with caraway seed Carum carvi (L.)], lemongrass [Cymbopogon citratus (D.C.) Stapf.], mandarine (Citrus reticulate Blanco), nutmeg (Myristica fragrans Houtt), cade (Juniperus oxycedrus L.), spearmint (Mentha spicata cumin (Cuminum cyminum and thyme red [Thymus vulgaris (L.)] at 30 X...