53．8％可杀得2000DF防治番茄早疫病药效试验

田间试验结果表明，可杀得2000DF对温室内番茄早疫病具有较好的防效，能有效控制病害的扩展蔓延。田间适宜使用浓度为800－1100倍，持效期可达10天以上。     

0.25%茛菪烷碱乳油防治大棚菊花白粉虱药效试验

报道了植物源杀虫剂0．25％莨菪烷碱乳油防治大棚菊花白粉虱效果，该制剂对水稻释1500－2000倍喷雾，药后3天的防效达90．01％－96．65％，持效期达10天以上，优于10％吡虫啉可湿性粉剂对水稀释4000倍的效果。且对花卉安全，有较高推广应用价值。     

20%丁硫克百威乳油防治棉蚜药效试验

２０％丁硫克百威乳油对棉蚜防效高，且速效性好，持效期７天左右，防治适浓度为６０００－７０００倍液。     

烟碱.楝素防治山楂叶螨,桃小食心虫及麦长管蚜药效试验

５％烟碱／楝素水剂能有效防治山查叶螨，桃小食心虫和蚜虫等多种害虫，持效期达１４天：防治适宜浓度分别为６００－８００位液、６００倍液和５０－６５ｍｌ／６６７ｍ＾２。     

吡虫啉防治柑桔黑刺粉虱,蚜虫试验

本文报道了吡虫啉在柑桔上的应用结果。用１０％吡虫啉２５００－１００００倍液喷雾一次，对柑桔黑刺粉虱防效达９１．１－１００％，对桔蚜防效达８５．３－１００％，持效期３０天以上，明显优于水胺硫磷和氧乐果。     

噻嗪酮防治柑桔黑刺粉虱试验

室内测定和田间试验的结果表明，噻嗪酮对柑桔黑刺粉虱的防效非常明显，在柑桔黑刺粉虱１龄若虫盛发期，用２５％噻嗪酮可湿性粉剂１０００－３０００倍稀释液防治一次，就可有效地控制其为害，防治效果可达９０．５－９９．３％，持效期达２５天以上。     

60%氟吗·锰锌防治葡萄霜霉病田间药效试验

田间试验结果表明，60％氟吗-锰锌对葡萄霜霉病有良好的防治效果，防效达87．06％～92．42％，且安全无药害。田间适宜的使用浓度为750～1000倍，持效期10d以上。     

35%赛丹乳油防治苹果黄蚜和麦蚜药效试验

３５％赛丹乳油对苹是黄蚜和麦长管蚜均有较好的防效,对天敌的优势种瓢虫的杀伤率低,防治苹果黄蚜的适宜浓度２０００倍液,持效期７天,防治麦蚜适宜用３００－３７５ｇ／ｈｍ＾２,持效期为１４天,防效为８９．３４％,９１．７２％,９９．２％。     

3%啶虫脒乳油防治烟蚜田间药效试验

田间试验结果表明,3%啶虫脒乳油对烟蚜有较好的防治效果,适宜稀释倍数为2100~2500倍,持效期在10d以上。     

40%杀扑磷防治茶蛇眼蚧药效试验

１９９６年对蛇眼蚧发生较重的茶园，在其孵化期用４０％杀扑磷乳油和２５％亚胺硫磷乳油进行防治试验。结果表明，４０％杀扑磷乳油１０００－２０００倍液、２５％亚胺硫磷乳油４００倍液对蛇眼蚧均有良好防效，尤以４０％杀扑磷防效显著，持效期可达２２天。     

Insect antifeedant properties of anthranoids from the genusVismia

Vismiones and ferruginins, representatives of a new class of lypophilic anthranoids from the genusVismia were found to inhibit feeding in larvae of species ofSpodoptera, Heliothis, and inLocusta migratoria.     

Direct observation of freeze-thaw instability of latex coatings via high pressure freezing and cryogenic SEM

Despite its industrial importance, the subject of freeze-thaw (F/T) stability of latex coatings has not been studied extensively. There is also a lack of fundamental understanding about the process and the mechanisms through which a coating becomes destabilized. High pressure (2100 bar) freezing fixes the state of water-suspended particles of polymer binder and inorganic pigments without the growth of ice crystals during freezing that produce artifacts in direct imaging scanning electron microscopy (SEM) of fracture surfaces of frozen coatings. We show that by incorporating copolymerizable functional monomers, it is possible to achieve F/T stability in polymer latexes and in low-VOC paints, as judged by the microstructures revealed by the cryogenic SEM technique. Particle coalescence as well as pigment segregation in F/T unstable systems are visualized. In order to achieve F/T stability in paints, latex particles must not flocculate and should provide protection to inorganic pigment and extender particles. Because of the unique capabilities of the cryogenic SEM, we are able to separate the effects of freezing and thawing, and study the influence of the rate of freezing and thawing on F/T stability. Destabilization can be caused by either freezing or thawing. A slow freezing process is more detrimental to F/T stability than a fast freezing process; the latter actually preserves suspension stability during freezing. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004 in Chicago, IL. Tied for first place in The John A. Gordon Best Paper Competition.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Bark and Ambrosia Beetles in the Southeastern US

In 2002–2004, we examined the flight responses of 49 species of native and exotic bark and ambrosia beetles (Coleoptera: Scolytidae and Platypodidae) to traps baited with ethanol and/or (−)-α-pinene in the southeastern US. Eight field trials were conducted in mature pine stands in Alabama, Florida, Georgia, North Carolina, and South Carolina. Funnel traps baited with ethanol lures (release rate, about 0.6 g/day at 25–28°C) were attractive to ten species of ambrosia beetles (Ambrosiodmus tachygraphus, Anisandrus sayi, Dryoxylon onoharaensum, Monarthrum mali, Xyleborinus saxesenii, Xyleborus affinis, Xyleborus ferrugineus, Xylosandrus compactus, Xylosandrus crassiusculus, and Xylosandrus germanus) and two species of bark beetles (Cryptocarenus heveae and Hypothenemus sp.). Traps baited with (−)-α-pinene lures (release rate, 2–6 g/day at 25–28°C) were attractive to five bark beetle species (Dendroctonus terebrans, Hylastes porculus, Hylastes salebrosus, Hylastes tenuis, and Ips grandicollis) and one platypodid ambrosia beetle species (Myoplatypus flavicornis). Ethanol enhanced responses of some species (Xyleborus pubescens, H. porculus, H. salebrosus, H. tenuis, and Pityophthorus cariniceps) to traps baited with (−)-α-pinene in some locations. (−)-α-Pinene interrupted the response of some ambrosia beetle species to traps baited with ethanol, but only the response of D. onoharaensum was interrupted consistently at most locations. Of 23 species of ambrosia beetles captured in our field trials, nine were exotic and accounted for 70–97% of total catches of ambrosia beetles. Our results provide support for the continued use of separate traps baited with ethanol alone and ethanol with (−)-α-pinene to detect and monitor common bark and ambrosia beetles from the southeastern region of the US.     

Methyl 2,4,6-decatrienoates Attract Stink Bugs and Tachinid Parasitoids

Halyomorpha halys (Stål) (Pentatomidae), called the brown marmorated stink bug (BMSB), is a newly invasive species in the eastern USA that is rapidly spreading from the original point of establishment in Allentown, PA. In its native range, the BMSB is reportedly attracted to methyl (E,E,Z)-2,4,6-decatrienoate, the male-produced pheromone of another pentatomid common in eastern Asia, Plautia stali Scott. In North America, Thyanta spp. are the only pentatomids known to produce methyl 2,4,6-decatrienoate [the (E,Z,Z)-isomer] as part of their pheromones. Methyl 2,4,6-decatrienoates were field-tested in Maryland to monitor the spread of the BMSB and to explore the possibility that Thyanta spp. are an alternate host for parasitic tachinid flies that use stink bug pheromones as host-finding kairomones. Here we report the first captures of adult and nymph BMSBs in traps baited with methyl (E,E,Z)-2,4,6-decatrienoate in central Maryland and present data verifying that the tachinid, Euclytia flava (Townsend), exploits methyl (E,Z,Z)-2,4,6-decatrienoate as a kairomone. We also report the unexpected finding that various isomers of methyl 2,4,6-decatrienoate attract Acrosternum hilare (Say), although this bug apparently does not produce methyl decatrienoates. Other stink bugs and tachinids native to North America were also attracted to methyl 2,4,6-decatrienoates. These data indicate there are Heteroptera in North America in addition to Thyanta spp. that probably use methyl 2,4,6-decatrienoates as pheromones. The evidence that some pentatomids exploit the pheromones of other true bugs as kairomones to find food or to congregate as a passive defense against tachinid parasitism is discussed.     

2007～2008年世界塑料工业进展

收集了2007年7月～2008年6月世界塑料工业的相关资料,介绍了2007～2008年国外塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况.按通用热塑性树脂(聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂)、工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚)、特种工程塑料(聚苯·硫醚、液晶聚合物、聚醚醚酮)、通用热固性树脂(酚醛、聚氨酯、不饱和聚酯树脂、环氧树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍.     

2005～2006年国外塑料工业进展

收集了2005年7月～2006年6月国外塑料工业的相关资料,介绍了2005—2006年国外塑料工业的发展情况。提供了世界塑料产量、消费量及全球各类树脂生产量以及各国塑料制品的进出口情况。作为对比,介绍了中国塑料的生产情况。按通用热塑性树脂（聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂）、工程塑料（聚酰胺、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚）、通用热固性树脂（酚醛、聚氨酯、不饱和树脂、环氧树脂）、特种工程塑料（聚苯硫醚、液晶聚合物、聚醚醚酮）的品种顺序,对树脂的产量、消费量、供需状况及合成工艺、产品开发、树脂品种的延伸及应用的扩展作了详细的介绍。