Pine-feeding aphid species cause considerable aesthetic damages and decrease the decorative value in the urban green spaces. In present study, aphids and associated ladybird predators were monitored on Pinus mugo Turra in Mashhad metropolis (Northeastern Iran) during four seasons in 2016. We aimed to evaluate the seasonal dynamics of pine-feeding aphid species and associated ladybird species in the urban green spaces along with determination their diversity and abundance. We identified four aphid species belonging to two genera of the subfamily Lachninae associated with eleven species of their natural coccinellid enemies. The highest numbers of aphid individuals were observed at the end of March till mid-August. Low numbers of coccinellids were present in March, but later (May–September) they exhibited a rapid increase, upon migration of aphids from the Mugo pine trees. Eulachnus tuberculostemmatus (Theobald) is considered as the dominant species, with a relative abundance of 32.97% whereas the highest abundance of aphids was detected in spring (45.84%). Cinara pinihabitans (Mordvilko) was the most common species in spring (43.06%) and summer (29.45%). Among the collected ladybirds, the seven-spot ladybird, Coccinella septempunctata L. was the dominant species with a relative abundance of 35.46% whilst the highest abundance of aphids was detected in spring (57.93%). C. septempunctata was the most prevalent identified coccinellid in spring (51.74%) and summer (21.51%), however, in fall and winter its presence declined (18.6 and 8.13% respectively). Scymnus nubilus (Mulsant) is reported as a new record for the Razavi Khorasan province exhibiting the lowest relative abundance (0.2%). Our results showed that ladybirds alongside high temperatures in the summer reduce the population growth of Mugo pine pest aphids in the urban green spaces of the target region. The potential importance of the ladybird dominant species as the effective biocontrol agents of aphids infesting Mungo pine trees could further trigger the reduction of insecticidal applications in parks and other green spaces.

以松为食的蚜虫会造成相当大的审美损害，并降低城市绿地的装饰价值。在目前的研究中，在松属 mugo上监测了蚜虫和相关的瓢虫捕食者2016 年四个季节，位于马什哈德大都市（伊朗东北部）的 Turra。我们旨在评估城市绿地中以松树为食的蚜虫物种和相关瓢虫物种的季节性动态，并确定它们的多样性和丰度。我们确定了属于 Lachninae 亚科的两个属的四种蚜虫物种，与它们的 11 种天然 cccinellid 敌人有关。3 月底至 8 月中旬观察到的蚜虫个体数量最多。3 月份出现的瓢虫数量很少，但后来（5 月至 9 月），随着蚜虫从穆戈松树迁移，它们的数量迅速增加。蝾螈（Theobald）被认为是优势物种，相对丰度为32.97％，而春季检测到的蚜虫丰度最高（45.84％）。Cinara pinihabitans (Mordvilko) 是春季（43.06%）和夏季（29.45%）最常见的物种。在采集的瓢虫中，七斑瓢虫Coccinella septempunctata L.是优势种，相对丰度为35.46%，而蚜虫丰度最高的是春季（57.93%）。C. septempunctata是春季 (51.74%) 和夏季 (21.51%) 最普遍的已识别的 cocinellid，然而，在秋季和冬季，其存在率下降了 (分别为 18.6% 和 8.13%)。蜈蚣（Mulsant）被报道为 Razavi Khorasan 省的新记录，其相对丰度最低（0.2%）。我们的研究结果表明，夏季高温的瓢虫减少了目标区域城市绿地中穆戈松害虫蚜虫的种群增长。瓢虫优势种作为蚜虫侵袭芒戈松树的有效生物防治剂的潜在重要性可能会进一步引发公园和其他绿地中杀虫剂应用的减少。