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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Acaricidal Activity of Peel Oil of Citrus spp. On Boophilus microplus) ผู้เขียน: Narong Chungsamarnyary,  นายวีระพล จันทร์สวรรค์, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractPeel oil from three varieties of Citrus maxima Merr. (pomelo): Khaao-phuaing (immature fruit), Thong-dee (immature and mature fruits) and Khaao-nam-phueng (mature fruits); Citrus reticulata Blanco., Citrus suncris Linn., Citrus sinensis Linn. And Citrus hystrix DC. were collected by mechanical pressing. These peel oil and the d-limonene substance were diluted with 95% ethanol into 1:5, 1:10 and 1:5 (V/V) and tested the acaricidal activity on the engorged female cattle tick (Boophilus microplus) by dipping method. The acaricidal activity on the tick larvae was tested with these oil and d-limonene dilution of 1:10 and 1:15 (V/V). The peel oil of C.reticulata and C.maxima variety thong-dee (immature and mature fruits) showed high acaricidal activity at the concentration of 1:10 (V/V) on engorged female ticks. These peel oil activity were 2 times thigher than that of d-limonene. The peel oil concentration 1:10 of C.sinensis and C.maxima (mature) exhibited high larvicidal activity, while the oil of C.hystrix, C.reticulata, C.suncris and C.maxima (immature fruits) showed relatively high larvicidal activity. Their larvicidal activity were 1.5 times stronger than d-limonene. The peel oil of the other citrus spp. Exhibited weaker acaricidal activity. This indicated that the peel oil from the citrus fruits could be directly applied to control the cattle tick. The waste of the over fruiting immature pomelo, would be of potential usage as a biocontrol substance. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effect of Tamarindus indicus L. Against the Boophilus microplus) ผู้เขียน:ดร.ณรงค์ จึงสมานญาติ, รองศาสตราจารย์ , นายวีระพล จันทร์สวรรค์, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractThe crude-extract of Tamarindus indicus L. with water and 10% ethanol in water were tested the acaricidal activity on the engorged female cattle tick (Boophilus microplus) by dipping method. The mature tamarind fruits taking off the seeds were extracted by water or 10% ethanol in the ratio of 1:2 and 1:5 W/V for 7 days. The corrected mortality of the ticks were observed after dipping at 24 h, 48 h and 7 days. The mean of corrected mortality of ticks of these 4 crude-extracts of tamarind fruits were 56-70 %, 70-89% and 77-99% by no statistically significant different after dipping at 24 h, 48 h and 7 days, respectively. The organic acids in tamarind fruits (oxalic, malic, succinic, citric and tartaric acids) were also bioassayed the acaricidal activity by dipping method. The oxalic acid of 0.5% and 1% concentration exhibited the highest acute acaricidal activity (56% and 62% mortality of ticks at 24 h after dipping, respectively). The tartaric acid 1% concentration showed the highest delayed acaricidal activity (73% mortality of ticks at 7 days after dipping). The mixture of 0.5% of oxalic acid with 0.5% of malic, succinic, citric and tartaric acids by concentration of 1:1 V/V were tested the acaricidal activity. The acaricidal activity of these acid mixtures were not more stronger than those of each individual acid. Both of crude-extract of tamarind fruits and their organic acids caused the patchy hemorrhagic swelling on the skin of ticks after dipping at 15 min. This indicates that the crude-extract of tamarind fruits by water or 10% ethanol is possibly use in practical for controlling the tropical cattle tick. The active substances are their organic acids, especially oxalic and tartaric acids. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Bioassay Techniques of Insecticidal Plant - Extracts on Tropical Cattle Ticks (Boophilus microplus)) ผู้เขียน:ดร.ณรงค์ จึงสมานญาติ, รองศาสตราจารย์, นายวีระพล จันทร์สวรรค์, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractThe engorge female of tropical cattle ticks survived in vitro more than 72h and began laying at 70-75h after taking from cattles. The larvae were hatches 14-23 days after laying. The unfed larvae survived more than 2 months in humid bottle. The leg contact method was used for larvicidal bioassay. The larvae were left to contact with the dry film of plant-extract. The mortality of larvae in empty, evaporated ethanol-and ethyl acetate- coated bottles as control were considerably low and no significant difference were found among them. In insecticidal bioassay of adult ticks, both body dip0ing and leg contact methods could be applied. The dipping method was rapid and easy procedure for screening bioassay. The leg contact methods was used for bioassay in the fractionation of compounds dissolved in non polar organic solvents. The mortality of engorge female ticks was very low at 48 h after dipping with water, methanol, ethanol, acetone and 2% polyoxyethylene sorbitan mono – oleate. After dipping with ethyl acetate and toluene the mortality were high. The survival checks of larvae was observed on its leg movement after exposing to fresh air. The treated engorge female tick was observed in its leg and body movement after exposing to warm-air, 100w lamp’s light sunshine and direct press to the body. The non survival ticks were confirmed by its non laying. This study demonstrated that the cattle ticks can be bioaassayed for larvicidal and insecticidal activities in vitro before further application in vivo |
หัวเรื่อง:การสำรวจเบื้องต้นพยาธิในเลือดแมวเขตบางเขน ผู้เขียน:ดร.สถาพร จิตตปาลพงศ์, ศาสตราจารย์ , นายวีระพล จันทร์สวรรค์, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractStained blood smears of 51 domestic cats in Bangkhen district area in Bangkok were examined for blood parasites. Eight samples (15.89%) showed positive results of a Cytauxzoon-like ring form. Babesia spp. and Haemobartonella spp. were found 2 (3.92%) in number in each genus. Ten cats (19.61%) found an Ehrlichia-like in monocytes and neutrophils. Modified Knott s technique method was used to investigate microfilaria of Dirofilaria imitis and 3 samples (5.88%) were positive. |
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หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Acaricidal Activity of the Combination of Plant Crude-extracts to Tropical Cattle Ticks) ผู้เขียน:ดร.ณรงค์ จึงสมานญาติ, รองศาสตราจารย์, Chainarong Ratanakreetakul, นายวีระพล จันทร์สวรรค์, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractThirty four ethanol crude-extracts of plant species were studied the acaricidal activity of the two combined crude-extracts to the engorged female tropical cattle tick (Boophilus microplus). The concentration of crude-extract was 2.5% in mixed solution of 9 parts of 1% Tween 80? and 1 part of 100% ethanol. The acaaricidal activity of the combined crude-extracts were tested by dipping method and observed the corrected mortality of the ticks after dipping 24 h, 48 h and 7 days. The acute acaricidal activity were highly found in the combined crude-extracts as follows; Aganonerion polymorphum Pierre ex Spire (Som-lom) with Calotropis procera R.Br. (Rak-dok-khaao), A. polymorphum with Anethum graveolens L.. (Phak-chee-laao); C. procera with Pentapetes Phoenicia L.. (Po-seng). The delayed acaricidal activity were highly wxhibited in the combined crude-extracts of A. polymorphum with Calotropis gigantean R.Br. (Rak-dok-muang), A. polymorphum with Cryptostegia grandiflora R.Br. (Baan-buree-muang), A. polymorphum with lxora nigricans Wight & Arn. (Lum-phuk), C. gigantean with C. grandiflora, C. gigantea with P.phoenicia, I. nigricans with A. graveolens, and Annona muricata L. (Thu-rian-thet) with Piper nigrum L. (Phrik-thai-dam). This results indicated that the practical application of the combination of two crude-extracts of these common plants to control the tropical cattle tick is possible. |
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หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effective Plant Crude-Extracts on the Tick (Boophilus Miscroplus) I. Larvicidal Action) ผู้เขียน:ดร.ณรงค์ จึงสมานญาติ, รองศาสตราจารย์, ดร.สุรัตน์วดี จิวะจินดา , นายวีระพล จันทร์สวรรค์, รองศาสตราจารย์, Udom Kaewsuwan, Panas Buranasilpin สื่อสิ่งพิมพ์:pdf AbstractForty four species of plants were extracted with ethanol. The larvaes of the tick (Boophilus microplus) were left to contact with the coating of 1.14 mg/cm2 of crude-extract in bottle. Five crude-extracts of these plants having larvicidal action (90-100% mortality rate) are as follow; Acanthus ebracteatus Vahl., Acrorus calamus L., Annona squamosa L., Luffa acutangula Roxb., and Stemona collinsae Craib. The insecticidal action of these crude-extracts on the adult tick is being test. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Larvicidal Effect of Plant Crude-extracts on the Tropical Cattle Tick (Boophilus microplus)) ผู้เขียน:ดร.ณรงค์ จึงสมานญาติ, รองศาสตราจารย์, ดร.สุรัตน์วดี จิวะจินดา, นายวีระพล จันทร์สวรรค์, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractThe ethanol crude-extract of 141 plant species were tested for the larvicidal activity on the tick larvae (Boophilus microplus). The larvae were left in contact with a dry film of plant-extract (Conc. 1.14 mg/cm2). The plant crude-extracts showing high larvicidal activity (86-100% mortality of larvae) are as follows; Anomianthus dulcic , Homalomena aromatica Schott., Kalanchoe pinnata Lamk., Moringa oleifera Lamk., Oxalis repens Thunb., Pachyrrhizus erosus L., and Rhinacanthus nasutus Kurz., The crude-extracts of Achyranthes aspera L., Aegle marmelos L., Blumea balsamifera DC., Euphobia heterophylla L., Pentapestes phoenicea L., Plumbago zeylanica L., Setcreasea purpurea Boom., and Streblus asper Lour. Showed relatively high larvicidal activity (71-85% mortality). Among the high activity group, only Anomianthus dulcic, Homalomena aromatica, Pachyrrhizus erosus, and Rhinacanthus nasutus still exhibited intense activity at 3 times lower concentration. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Acaricidal Effect of Plant Crude-extracts on Tropical Cattle Ticks (Boophilus microplus)) ผู้เขียน:ดร.ณรงค์ จึงสมานญาติ, รองศาสตราจารย์, ดร.สุรัตน์วดี จิวะจินดา, นายวีระพล จันทร์สวรรค์, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractThe 171 ethanol crude-extracts from 151 plant species were in vitro tested for acaricidal activity on adult tropical cattle ticks by the dipping method. The 10% solution of crude-extract of Calotropis gigantea R. Br. And Streblus asper Lour. Exhibited high acaricidal activity (92% and 100% corrected mortality of ticks 48 h after dipping). Relatively high acaricidal activity (71-85% mortality) was found in the crude-extracts of Aganorcrion polymorphum P.S., Datura metel L. and Rhinacanthus nasutus Kurz. Acaticidal activity of some crude-extracts was observed 5 days after dipping, Which might indicate delayed toxicity. The high delayed acaricidal activity ( 86-100% non laying ) was occurred in Alpinia officinarum Hance, Annona muricata Llk Calotropis procera R.Br., Michelia champaca L;, Pachyrrhisus erosus L., Plumbago zeylandica L, Polyscias balfouriana B., Premna latifolia Roxb., Thunbergia erecta T. Anders., and Thunbergia laurifolia Lindl.. |