We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Biology of Coconut Scale, Aspidiotus destructor Signoret (Hemiptera: Diaspididae), on Mango Plants (Mangifera sp.) Under Laboratory and Greenhouse Conditions.
- Authors
Salahuddin; Habib ur Rahman; Khan, Inamullah; Daud, M. K.; Mamoon-ur-Rashid, Muhammad
- Abstract
Biology of the scale insect Aspidiotus destructor Signoret (Hemiptera: Diaspididae) was studied on mango cultivar Desi at mean temperature of 30°C and relative humidity (RH) 64 % in the laboratory as well as on four mango cultivars in a greenhouse at 25°C and 60 % RH in Khyber Pakhtunkhwa Province, Pakistan. The pest sucks cell sap from the underside of the leaves and petioles of mango plants causing chlorosis and necrosis. Observations of developmental stages and morphometry of A. destructor were conducted using a head lens and an ocular and stage micrometer. In the laboratory, mature females laid 28-65 eggs in 11-13 days under the scale cover; the eggs hatched after 4-6 days. A. destructor males passed through two feeding instars with pre-pupal, pupal and adult stages while females had two immature instars with pre-oviposition and oviposition stages. Mean developmental span (egg to adult) of male insect was 27 days and for female, it was 39.5 days. Under greenhouse conditions, eggs laid by mature A. destructor hatched after 5-7 days. Mean developmental times on Desi, Langra, Kala Chounsa and Anwar Ratoul cultivars were 39, 39, 41.5 and 43.5 days for males and 50.5, 51.5, 53.5 and 53.5 days for females, respectively. The insect completed 3 to 4 generations between July and December in the field in southern region of Khyber Pakhtunkhwa, Pakistan. This study provides forecast of population dynamics of A. destructor for timely management strategies of the pest.
- Subjects
ASPIDIOTUS destructor; MANGIFERA; ANACARDIACEAE; ASPIDIOTUS; DIASPIDIDAE
- Publication
Pakistan Journal of Zoology, 2015, Vol 47, Issue 4, p1163
- ISSN
0030-9923
- Publication type
Article