Life history parameters and biological control potential of Snellenious manilae Ashmed (Hymenoptera: Broconidae), a parasitoid of common cutworm, Spodoptera litura Fabricius (Lepidoptera: Noctuidae)
Issue Date
10-2011
Abstract
The sexuality, mode of reproduction, rate of egg maturation, ovipositional patterns, host stage suitability and developmental period of Snellenious manilae, a larval parasitoids of common cutworm, was studied. The of reproduction of the laboratory population of S. manilae does not fit the strict dichotomy (synovigenic versus pro-ovigenic) but follows the Type 2 index wherein initial egg loads are lower and egg deposition increases on the first few days of life before declining rapidly. Highest number of mature ovarian eggs was recorded on day three and then gradually decreased by one each successive day until the wasp died on day six. The ovipositioning female does not discriminate already parasitized larva and the same female may oviposit again in the same larva several times. Duration of oviposition insertion was very short (1-2s), eggs inserted across the cutworm body, with the highest number within the head region. The peak of oviposition activities occurs about the mid morning (10:30 am) and mid afternoon (3:30 pm). A koinobiont parasitoid, S. manilae, oviposited on larvae of three instars but progeny production and parasitism were highest in the first instar. The total developmental period of the parasitoid from egg deposition to pupation was 10.5 ± 0.08 days, pupation to adult emergence was 4.2 ± 0.10 days, while the average adult life was 6.1 ± 0.07 days with honey as food.
Source or Periodical Title
Philippine Entomologist
ISSN
0048-3753
Volume
25
Issue
2
Page
201-202
Document Type
Article
Frequency
semi-annually
Language
English
Recommended Citation
Javier, Abigaille Mia V. and Ceballo, Flor A., "Life history parameters and biological control potential of Snellenious manilae Ashmed (Hymenoptera: Broconidae), a parasitoid of common cutworm, Spodoptera litura Fabricius (Lepidoptera: Noctuidae)" (2011). Journal Article. 5211.
https://www.ukdr.uplb.edu.ph/journal-articles/5211
En – AGROVOC descriptors
SPODOPTERA LITURA; HYMENOPTERA; LEPIDOPTERA; NOCTUIDAE; PARASITOIDS; BIOLOGICAL CONTROL AGENTS; LIFE CYCLE