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- Title
HIBERNATION, SEASONAL INCIDENCE OF CITRUS LEAF MINER PHYLLOCNISTIS CITRELLA (STAINTON) (GRACILLARIIDAE: LEPIDOPTERA) IN CITRUS NURSERIES IN IRAQ.
- Authors
Jumaah, Mustafa Dhari; Al-Jassany, Rahdi Fadhil; Hamad, Bassem Shehab
- Abstract
The overwintering and seasonal incidence of Citrus leaf miner (CLM), Phyllocnistis citrella Stainton 1856, was investigated in citrus nurseries in Baghdad, Iraq during the autumn season 2019-2020. Forty infested citrus transplants with larvae and pupae were reserved using a muslin cloth or Plexiglas box to determine the hibernated stage. The results revealed that insect adult's continued to emerge from 19.11.2019 to 30.01.2020, indicating that this insect does not hibernate at larval or pupal stages under Iraq environmental conditions. The seasonal incidence was monitored using Light-pheromone traps in two locations in Baghdad which where Al-Zafaraniya and Al-Qurayat. The study results revealed that adults emerged in the field at the beginning of October when the temperatures mean less than 300C. This was combined with presence of newly grown leaves and twigs and the insect population density increased with time despite of the low temperature that recorded less than 100C in December and January. The presence of the insect adults was observed in spring in the traps especially in the third week of March, which is the time of new flushes. The increases in population density continued until the first week of May, and then starts to decrease despite the presence of new flushes.
- Subjects
BAGHDAD (Iraq); IRAQ; LEAFMINERS; INSECT population density; GRACILLARIIDAE; CITRUS; LEPIDOPTERA; PLANT nurseries; PHEROMONE traps
- Publication
Biochemical & Cellular Archives, 2022, Vol 22, Issue 1, p2679
- ISSN
0972-5075
- Publication type
Article