List of Articles Seasonal abundance

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  1 - Seasonal abundance of Planococcus ficus (Hemiptera, Pseudococcidae) in Jahrom vineyards, Fars Province-Iran
  Majid Fallahzadeh Nazila Saghaei Hadi Ostovan
  The vine mealybug, Planococcus ficus (Signoret) has been found in most grape-production areas throughout the world. The damage of the pest has increased on grape in some parts of Fars province-Iran during recent years. Some ecological aspects of vine mealybug were studi More

  The vine mealybug, Planococcus ficus (Signoret) has been found in most grape-production areas throughout the world. The damage of the pest has increased on grape in some parts of Fars province-Iran during recent years. Some ecological aspects of vine mealybug were studied in vineyards in Jahrom during 2008-2009. Seasonal abundance of vine mealybugwas monitored by time-consuming examination technique. In geographical condition of Jahrom vineyards P. ficus has 5 generations of seasonal abundance from April to November. After fifth generation all stages of P. ficus (female adult, nymphal instars and egg) overwintered on root from late November to next March. Population density of female adult and nymphal instars increased rapidly in May and has a great decline after harvest in August. Vine mealybugs were found in trunk in spring, leaves, buds and fruit in summer, however, the mealybugs always were found in protected locations (under the bark of the trunk). Manuscript profile
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  2 - Seasonal abundance and identification key of Orius spp. (Hemiptera: Anthocoridae) in Fars Province
  H. Ostovan F. Homayoon Sh. Hesami M. Fallahzadeh
  Family Anthocoridae, are as biological control agents in many agroecosystems. The seasonal abundance and distribution of Orius species were determined from different crops, trees, flowers and weeds in Fars province during 2016-2018. In this study Orius  albidipenni More

  Family Anthocoridae, are as biological control agents in many agroecosystems. The seasonal abundance and distribution of Orius species were determined from different crops, trees, flowers and weeds in Fars province during 2016-2018. In this study Orius  albidipennis (Reuter), Orius laticollis discolor (Reuter), Orius laticollis laticollis (Reuter), Orius  horvathi (Reuter), Orius  minutus (Linnaeus), Orius vicinus (Ribaut), Orius  retamae Noualhier, Orius laevigatus inaequalis*Wagner, Orius laevigatus laevigatus (Fieber), Orius laevigatus maderensis* (Reuter), Orius niger aegyptiacus Wagner, Orius niger niger (Wolff), Orius  piceicollis* (Lindberg) were collected on different 63 host plants from 50 regions in Fars province. Among them the species and subspecies marked with * were new records for Iran. The Simpson diversity indices of Spring, Summer, Fall and Winter seasons were 3.954, 4.082, 3,793 and 1 respectively. Seasonal diversity of Orius spp. In Summer were significantly higher than other seasons. O. niger niger was found to be active throughout the year. The other species of Orius were collected in spring, summer and autumn, O. piceicollis, O. retamae and O. laevigatus inaequalis were only active in summer. O. niger niger and O. albidipennis were the most collected Anthocorid species. From results it is concluded that O. niger niger and O. albidipennis are well adapted to the geographical conditions and plant biodiversity in Fars province. Therefore, they could be considered as biological control agents in fields.   Manuscript profile