1,049 research outputs found
Composition Control of r.f.-Sputtered Ti50Ni40Cu10 Thin Films Using Optical Emission Spectroscopy
No full textEmergence, fecundity and longevity of Trichogramma ostriniae (Hymenoptera: Trichogrammatidae) after cold storage
No full text玉米螟赤眼卵寄生蜂（Trichogramma ostriniae Pang & Chen）用外米綴蛾(Corcyra cephalonica Stainton）卵做為代用寄主時，雌雄蜂自卵出生至成蟲羽化之嶺育速率皆隨溫度之升高而呈直線加快。其一次迴歸之R2 值分別達0.9962與0.9930，發育臨界低溫分別為9.59℃與8.91℃。將不同日齡蜂片分別在9℃與6℃、12℃下進行冷藏試驗，結果在12℃下之較老齡蜂片於冷藏期間即陸續羽化，其餘日齡蜂片冷藏5日後之潛在寄生數亦多比6、9℃者顯著較少，因此認為12℃較不適做為冷藏溫度。6℃與9℃之冷藏效果相近，但皆有負面影響。雌成蜂壽命，經此二溫度冷藏後分別為35-63日與28-50日，皆比對照組的90日顯著減短。潛在寄生數除第6日齡在9℃冷藏結果與對照組差異不顯著外，其餘處理皆顯著減少，其中尤以第3、4、8日齡蜂冷藏者更少。可知不同冷藏溫度對蜂片冷藏後之雌蜂羽化數、壽命及繁殖有不同之影響，而進入冷藏的日齡亦是影響冷藏效果的重要因素。
The developmental rate from egg to adult of female and male parasitoids (Trichogramma ostriniae Pang & Chen) reared on rice moth (Corcyra cephalonica Stainton) eggs went up with increasing of temperature. And the R -values by linear regression were 0.9962 and 0.9930, respectively, with 9.59℃ and 8.91 ℃ for low temperature development threshold. Cold storage of various day age parasitoid cards at 6, 9, or 12℃ was conducted in this study. Result showed that 12℃ was not a suitable temperature for cold storage because the parasitoid adults could emerge successively within stored period, and their potential parasitism were mostly significantly fewer than that was stored at 6℃ and 9℃. Cold storage at 6℃ and 9℃ achieved almost similar result, but both temperatures had various negative effects. Female adult longevity were 3.5-6.3 and 2.8-5.0 days for both temperatures respectively, which were shorter than the control of 9.0 days. The potential parasitism, the 3rd, 4th, 8th day age parasitoid of both temperature treatments were especially less than that of the control, except the 6th day age parasitoid at 9℃. Apparently, different temperatures could have different effects to the adult emergence, longevity and fecundity. And the stage of parasitoid is an important factor affecting the efficacy of cold storage
Enhanced photoelectrochemical performance of photoanode fabricated using polystyrene ball embedded TiO2 pastes
No full textPelmatops fukienensis Zia & Chen 1954
No full textPelmatops fukienensis Zia & Chen, 1954 (Figs. 57 –62, 89, 98) Pelmatops fukienensis Zia & Chen, 1954: 307; Hardy, 1977: 76; Wang, 1996: 111; Chen et al., 2010: 3. Type-locality: Shaowu [Shao-Woo], Fujian [Fukien], China. (HT ♂ IZCAS) Description (supplement to the species description of Chen et al., 2010). Compound eye wholly smooth and rounded, without projection; ommatidia similar in size (Fig. 89). Occipital protuberance in female flat, rectangular, not clearly delimited from occiput, setae on its posterior margin short and numerous (Fig. 98). Male terminalia: epandrium large and broad in posterior view; lateral surstylus small and short, apex rounded in lateral view; medial surstylus with 1 black prensiseta (Fig. 61). Distribution. China (Fujian, Sichuan, Shaanxi (new record), Taiwan), Burma (new record). Specimens examined. BURMA: Chin Hills, Mt Victoria, 2400–2800m, May 1938, G. Heinrich, 2 ♀ (BMNH, checked by D.L.Hancock, pers. comm.). CHINA: Fujian: Chongan, 750 m, 24 June 1960, Y. R. Cheng, 1 ♀ (IZCAS); Shaowu, 20 April 1943, C.C. Maa, HT ♂ (IZCAS, head missing, male genetalia are shown in Fig. 61), 1 PT♀ (IZCA S). Sichuan: Mt. Emei, 21 July 1957, K.R. Huang; 26 May 1957, L.Y. Zheng, 2 ♀ (IZCAS). Taiwan: Alishan, Chiayi Hsien, 2270m, 8–9 April 1965, C.M. Yoshimoto, 1 ♀ (BPBM). Shaanxi: Ningshan, Huoditang, 1600m, July 2013, J.Z. Wang, 1 ♀ (NAFU, Figs. 57 –60, 62). Remarks. The record from Shaanxi extends the known distribution of Pelmatops northward to the Oriental- Palearctic transition zone, and that from Burma extends the known southern limit of the range.Published as part of Chen, Xiao-Lin, Norrbom, Allen, Freidberg, Amnon, Chesters, Douglas, Islam, Md Sajedul & Zhu, Chao-Dong, 2015, A systematic study of Ichneumonosoma de Meijere, Pelmatops Enderlein Pseudopelmatops Shiraki and Soita Walker (Diptera: Tephritidae), pp. 301-347 in Zootaxa 4013 (3) on pages 317-318, DOI: 10.11646/zootaxa.4013.3.1, http://zenodo.org/record/25439
(41(3):295-310)Assessment of field releases of Trichogramma ostriniae (Hymenoptera: Trichogrammatidae) for the control of the Aaian corn borer, Ostrinia furnacalis (Lepidoptera: Pyralidae)
No full text本試驗於本省臺中縣外埔、霧峰及烏日等地區，以連續增補釋放玉米螟赤眼卵蜂（Trichogramma ostriniae Pang & Chen）的方式，進行對亞洲玉米螟（Ostrinia furnacalis（Guénée））防治效果評估及與化學防治法的比較。自74年秋作至76年春作四期作之試驗結果，除75年秋作不明顯外，單獨釋放該蜂或放蜂配合施用藥劑均可減少植株被害率，有防治玉米螟之效果，但在絕大部份的處理區中，玉米螟卵塊發生數均與卵塊被寄生率無顯著相關性；在74年秋作和75年春作的放蜂區，玉米螟卵塊被寄生率分別為43.61～55.61％和32.33～40.29％，75年秋作和76年春作經增加放蜂量後其寄生率均大幅提高，分別為70.54～74.20％和60.79～65.13％，顯示玉米螟赤眼卵蜂在玉米螟之綜合防治策略中有其利用價值。比較藥劑防治區和對照區之玉米螟卵塊被寄生率，二者間差異不顯著，此表示施用加保扶（3％ Furadan）或毒斯本（5％ Dursban）粒劑農藥對本寄生蜂田間族群無明顯的不利影響。
The egg parasitoid, Trichogramma ostriniae pang & Chen, was released for the control of the Asian corn borer at Waipu, Wufeng and Wujih in central Taiwan for each crop season from fall of 1985 to spring of 1987. Control efficacy through various corn borer control strategies was evaluated over four crop seasons in this study. In summary, releases of T. ostriniae only or integrating parasitoid with insecticide application reduced percent plant injured and gained good control of the Asian corn borer. Parasitism of corn borer egg masses was generally uncorrelated to the abundance of borer egg masses occurred in corn field. Percent parasitisms of egg masses are 43.61~55.6% and 32.33~40.29% over wasp releasing treatments in fall crop 1985 and spring crop 1986, respectively. The increase of releasing number of the wasps raised the parasitism of egg masses up to 70.54~74.20% and 60.79~65.13% over wasp releasing treatments in fall crop 1986 and spring crop 1987, respectively, which revealed the potential of using T. ostriniae in Asian corn borer management system. Percent parasitisms of egg masses for control treatments were not consistently higher than those for insecticide only treatments, which indicated that the use of granular insecticide might not cause any adverse effect on the wasps
Electron-electron interactions in a two-dimensional electron system in an Al0.15Ga0.85N/GaN heterostructure grown on p-type Si
No full textA tücsök meg a hangyák
No full textThis children's book is composed of seven thick boards bound together. On the cover a grasshopper with moustache sits on a mushroom playing his fiddle as a row of ants marches by carrying or rolling food and an ant-baby. The next pages expand on their labors. They include a cut-out portion that looks past their hill to the flowers. On the following pages ants continue their workline while, I believe, young grasshoppers dance about and the older grasshopper continues to fiddle. Succeeding pages show more ant work, including carrying off a dead or exhausted ant on a stretcher. And we see lots of grasshopper fiddlers while other ants push carts full of food, both by day and by night. Soon there are rains and snows, and an ant finds the grasshopper lying next to his fiddle on the ground. The ants take him in, feed him, and dance to his music. I believe it is typical of the East Block countries that a Hungarian book was executed in Czechoslovakia. Might there have been a Czech original?Language note: Hungaria
- …
