Anoplophora glabripennis, Xylotrechus rusticus,Potosia (Liocola) brivitarsis and Ambrostoma quadriimpressum adults were controlled by injecting 0.8 mL imidacloprid per centimeter DBH on willow, poplar and elm trees in...Anoplophora glabripennis, Xylotrechus rusticus,Potosia (Liocola) brivitarsis and Ambrostoma quadriimpressum adults were controlled by injecting 0.8 mL imidacloprid per centimeter DBH on willow, poplar and elm trees in the field.Result showed that 285 adults of A.glabripennis were killed on 15 willow trees in 10 days with 25% imidacloprid insecticide and 281 adults were killed with 15% imidacloprid insecticide under same conditions.724 adulds of P. (Liocola) brivitarsis were killed on 10 willow trees in 10 days with 10% imidacloprid insecticide.50 adults of X.rusticus were killed on 5 poplar trees in 7 days and 146 adulds of A.quadriimpressum were killed on 4 elm trees in 5 days with 25% imidacloprid insecticide.Result showed that imidacloprid insecticide is a high effective systemic for these 4 species of pests.展开更多
利用14%吡虫啉.敌敌畏注干液剂、4.15%吡虫啉.阿维菌素注干液剂、4.5%吡虫啉注干液剂、10%啶虫脒注干液剂和30%敌畏.氧乐注干液剂等5种药剂进行了树干注射防治危害柳树的光肩星天牛(Anop lophora g labrip enn is(M otschu lsky))试验,...利用14%吡虫啉.敌敌畏注干液剂、4.15%吡虫啉.阿维菌素注干液剂、4.5%吡虫啉注干液剂、10%啶虫脒注干液剂和30%敌畏.氧乐注干液剂等5种药剂进行了树干注射防治危害柳树的光肩星天牛(Anop lophora g labrip enn is(M otschu lsky))试验,并研究了14%吡虫啉.敌敌畏注干液剂田间防治光肩星天牛的使用技术。结果表明,供试的5种注干药剂对光肩星天牛幼虫均有一定的防治作用,其中14%吡虫啉.敌敌畏注干液剂防效最好。14%吡虫啉.敌敌畏注干液剂以1.0 mL/cm树干胸径注药量对天牛幼虫的防效可达90.7%,优于对照药剂30%敌畏.氧乐注干液剂。利用14%吡虫啉.敌敌畏注干液剂林间防治天牛时,当幼虫虫口密度低于1.15头/株时,1年注药1次;虫口密度约为5头/株时,1年注药2次;虫口密度约为12头/株时,两年注药3次,可将虫口密度控制到0.15头/株以下,有效控制天牛的危害。展开更多
To restore vegetation on metal mine tailings is very difficult because theyoften contain high concentrations of heavy metals, low nutrient content and low water retentioncapacity. This study involved 3 experiments tha...To restore vegetation on metal mine tailings is very difficult because theyoften contain high concentrations of heavy metals, low nutrient content and low water retentioncapacity. This study involved 3 experiments that evaluated the effects of 4 treatment amendments:montmorillonite, rice straw, organic manure and chemical fertilizer on the growth of ryegrass(Lolium perenne L.) and willow (Salix viminalis L.) with Cu and Zn mine tailings from two miningareas. The results showed that ryegrass was the most tolerant of 4 crops to Cu toxicity. Also whenorganic manure, which contained high concentrations of inorganic salts, was added to the minetailings, it significantly hindered ryegrass growth (P = 0.05). Meanwhile, with ryegrass organicmanure significantly increased (P = 0.05) the extractable Cu concentration in both mine tailings.When montmorillonite was used as a mine tailings amendment with willow, the height and tress numberat the 1st cut were significantly greater (P = 0.05) than a control without montmorillonite. Howeverthere was no significant difference for height, tress number, dry weight or root dry weight at the2nd cut. So, amendment applications to reduce metal toxicity and increase nutrients retention inmine tailings were essential during revegetation of mine tailings.展开更多
文摘Anoplophora glabripennis, Xylotrechus rusticus,Potosia (Liocola) brivitarsis and Ambrostoma quadriimpressum adults were controlled by injecting 0.8 mL imidacloprid per centimeter DBH on willow, poplar and elm trees in the field.Result showed that 285 adults of A.glabripennis were killed on 15 willow trees in 10 days with 25% imidacloprid insecticide and 281 adults were killed with 15% imidacloprid insecticide under same conditions.724 adulds of P. (Liocola) brivitarsis were killed on 10 willow trees in 10 days with 10% imidacloprid insecticide.50 adults of X.rusticus were killed on 5 poplar trees in 7 days and 146 adulds of A.quadriimpressum were killed on 4 elm trees in 5 days with 25% imidacloprid insecticide.Result showed that imidacloprid insecticide is a high effective systemic for these 4 species of pests.
文摘利用14%吡虫啉.敌敌畏注干液剂、4.15%吡虫啉.阿维菌素注干液剂、4.5%吡虫啉注干液剂、10%啶虫脒注干液剂和30%敌畏.氧乐注干液剂等5种药剂进行了树干注射防治危害柳树的光肩星天牛(Anop lophora g labrip enn is(M otschu lsky))试验,并研究了14%吡虫啉.敌敌畏注干液剂田间防治光肩星天牛的使用技术。结果表明,供试的5种注干药剂对光肩星天牛幼虫均有一定的防治作用,其中14%吡虫啉.敌敌畏注干液剂防效最好。14%吡虫啉.敌敌畏注干液剂以1.0 mL/cm树干胸径注药量对天牛幼虫的防效可达90.7%,优于对照药剂30%敌畏.氧乐注干液剂。利用14%吡虫啉.敌敌畏注干液剂林间防治天牛时,当幼虫虫口密度低于1.15头/株时,1年注药1次;虫口密度约为5头/株时,1年注药2次;虫口密度约为12头/株时,两年注药3次,可将虫口密度控制到0.15头/株以下,有效控制天牛的危害。
基金Project supported by the State Key Basic Research Foundation (No. 2002CB410808) the Director Foundation of theInstitute of Soil Science, Chinese Academy of Sciences (No. ISSASIP0102) the Knowledge Innovative Program of Chinese Academy of Sciences (N
文摘To restore vegetation on metal mine tailings is very difficult because theyoften contain high concentrations of heavy metals, low nutrient content and low water retentioncapacity. This study involved 3 experiments that evaluated the effects of 4 treatment amendments:montmorillonite, rice straw, organic manure and chemical fertilizer on the growth of ryegrass(Lolium perenne L.) and willow (Salix viminalis L.) with Cu and Zn mine tailings from two miningareas. The results showed that ryegrass was the most tolerant of 4 crops to Cu toxicity. Also whenorganic manure, which contained high concentrations of inorganic salts, was added to the minetailings, it significantly hindered ryegrass growth (P = 0.05). Meanwhile, with ryegrass organicmanure significantly increased (P = 0.05) the extractable Cu concentration in both mine tailings.When montmorillonite was used as a mine tailings amendment with willow, the height and tress numberat the 1st cut were significantly greater (P = 0.05) than a control without montmorillonite. Howeverthere was no significant difference for height, tress number, dry weight or root dry weight at the2nd cut. So, amendment applications to reduce metal toxicity and increase nutrients retention inmine tailings were essential during revegetation of mine tailings.
