As it was rear to find out detailed description, a study on biology and control measures ofP. marginatus was carried out at National Plant Quarantine Service, Katunayake Sri Lanka. Average length and width of differen...As it was rear to find out detailed description, a study on biology and control measures ofP. marginatus was carried out at National Plant Quarantine Service, Katunayake Sri Lanka. Average length and width of different stages, number of eggs in an egg sac, hatchability rate and duration of life cycle were studied. Control measures were tested using herbal oils and it was arranged in Completely Randomized Design with six replicates. Experiments were carried out in laboratory conditions under 28 ±2℃ and 70% RH. Range of length and width of different life stages revealed that, egg 0.3-0.1 mm ×0.15-0.10 mm, 1st instar 0.4-0.2 mm × 0.20-0.10 mm, 2nd instar 0.6-0.5 mm × 0.29-0.20 mm, 3rd instar male 0.8-0.5 mm × 0.30-0.20 mm, 3rd instar female 0.7-0.5 mm × 0.29-0.20 mm, adult male 0.9-0.7 mm× 0.20-0.10 mm and adult female 2.8-1.9 mm × 1.40-0.80 mm. A range of 100-200 eggs were in an ovisac and hatchability rate was 76-80%. Twenty to twenty-four days were taken to complete their life cycle. Cinnamon and Neem oil in cooperated with Surfactant and Kerosene oil could be effectively used as potential chemical agents for control of P. marginatus.展开更多
2020年9月在江西省赣州市章贡区新发现一种严重发生的粉蚧,经制作玻片标本,形态鉴定为木瓜粉蚧(Paracoccus marginatus Williams and Granara de Willink),后得到28S序列比较鉴定确认。该虫为国内新入侵物种在江西的首次发现,在赣州主...2020年9月在江西省赣州市章贡区新发现一种严重发生的粉蚧,经制作玻片标本,形态鉴定为木瓜粉蚧(Paracoccus marginatus Williams and Granara de Willink),后得到28S序列比较鉴定确认。该虫为国内新入侵物种在江西的首次发现,在赣州主要危害园林绿化植物和杂草,其中以木芙蓉、黄花槐、白花鬼针草危害最甚,介绍了木瓜粉蚧的鉴别特征、寄主、分布和为害情况。展开更多
为明确木瓜秀粉蚧Paracoccus marginatus Williams et Granara de Willink 1922在中国的潜在适生区,基于中国820个气象站点的气象数据和未来气候变化数据,结合木瓜秀粉蚧的生物学特性,利用CLIMEX模型对该虫在中国当前气候以及未来气候...为明确木瓜秀粉蚧Paracoccus marginatus Williams et Granara de Willink 1922在中国的潜在适生区,基于中国820个气象站点的气象数据和未来气候变化数据,结合木瓜秀粉蚧的生物学特性,利用CLIMEX模型对该虫在中国当前气候以及未来气候条件下的潜在适生区进行预测。结果显示,木瓜秀粉蚧在中国的潜在适生区主要在南方,适生区面积占全国陆地总面积的9.07%。高适生区主要包括海南省、广东省南部、广西壮族自治区南部以及福建省和云南省小部分地区。在未来气候条件下,2050年木瓜秀粉蚧的潜在适生区将进一步扩大,适生区面积所占比例将增加至15.46%,且有向北移动的趋势。表明木瓜秀粉蚧对中国南方地区的农业潜在威胁巨大,建议将该虫增补为检疫对象,并加强检疫监管和种群动态监测。展开更多
文摘As it was rear to find out detailed description, a study on biology and control measures ofP. marginatus was carried out at National Plant Quarantine Service, Katunayake Sri Lanka. Average length and width of different stages, number of eggs in an egg sac, hatchability rate and duration of life cycle were studied. Control measures were tested using herbal oils and it was arranged in Completely Randomized Design with six replicates. Experiments were carried out in laboratory conditions under 28 ±2℃ and 70% RH. Range of length and width of different life stages revealed that, egg 0.3-0.1 mm ×0.15-0.10 mm, 1st instar 0.4-0.2 mm × 0.20-0.10 mm, 2nd instar 0.6-0.5 mm × 0.29-0.20 mm, 3rd instar male 0.8-0.5 mm × 0.30-0.20 mm, 3rd instar female 0.7-0.5 mm × 0.29-0.20 mm, adult male 0.9-0.7 mm× 0.20-0.10 mm and adult female 2.8-1.9 mm × 1.40-0.80 mm. A range of 100-200 eggs were in an ovisac and hatchability rate was 76-80%. Twenty to twenty-four days were taken to complete their life cycle. Cinnamon and Neem oil in cooperated with Surfactant and Kerosene oil could be effectively used as potential chemical agents for control of P. marginatus.
文摘2020年9月在江西省赣州市章贡区新发现一种严重发生的粉蚧,经制作玻片标本,形态鉴定为木瓜粉蚧(Paracoccus marginatus Williams and Granara de Willink),后得到28S序列比较鉴定确认。该虫为国内新入侵物种在江西的首次发现,在赣州主要危害园林绿化植物和杂草,其中以木芙蓉、黄花槐、白花鬼针草危害最甚,介绍了木瓜粉蚧的鉴别特征、寄主、分布和为害情况。
文摘为明确木瓜秀粉蚧Paracoccus marginatus Williams et Granara de Willink 1922在中国的潜在适生区,基于中国820个气象站点的气象数据和未来气候变化数据,结合木瓜秀粉蚧的生物学特性,利用CLIMEX模型对该虫在中国当前气候以及未来气候条件下的潜在适生区进行预测。结果显示,木瓜秀粉蚧在中国的潜在适生区主要在南方,适生区面积占全国陆地总面积的9.07%。高适生区主要包括海南省、广东省南部、广西壮族自治区南部以及福建省和云南省小部分地区。在未来气候条件下,2050年木瓜秀粉蚧的潜在适生区将进一步扩大,适生区面积所占比例将增加至15.46%,且有向北移动的趋势。表明木瓜秀粉蚧对中国南方地区的农业潜在威胁巨大,建议将该虫增补为检疫对象,并加强检疫监管和种群动态监测。
