Journal of Food, Agriculture and Environment

Diversity of pest and non-pest insects in an organic paddy field cultivated under the System of Rice Intensification (SRI): A case study in Lubok China, Melaka, Malaysia

Author(s):

S. Norela, I. Anizan, B. S. Ismail *, A. Maimon

Recieved Date: 2013-05-10, Accepted Date: 2013-10-18

Abstract:

Insect diversity studies were conducted in paddy plots planted organically under SRI in Lubok China, Melaka. Eight sampling visits were made starting from the planting of seedlings until flowering stage, milky stage and ripening of the grains. Five sampling methods were used, i.e. light trap, sweeping net, sticky trap, yellow pan trap and pitfall trap. A total of 34 species representing 21 families and 8 orders of insects was recorded comprising Homoptera, Hymenoptera, Coleoptera, Orthoptera, Odonata, Hemiptera, Lepidoptera and Diptera. For the total sampling period, the Shannon-Wiener diversity index (H’) is 1.17, Shannon-Weiner evenness index (E’) is 0.89 and Margalef richness index (R’) is 4.77, respectively. However, no significant differences between the sampling visit (p > 0.05). The most abundant insects order were Orthoptera (22.9%; 231 individuals) the lowest was Diptera (2.3%; 23 individuals). The most abundant species was order Lepidoptera (13.8%) and the lowest was from Hemiptera (5.9%). In terms of feeding habits, herbivorous insects were the most abundant (65%), followed by carnivores (27%) and omnivores (8%). Results indicated that SRI has ensured a good balance between the populations of pests, beneficial insects (predators and parasitoids) as well as other insect’s community during the various phases of paddy development without any appreciable loss in yield. These show that SRI is an effective way to conserve, use and enhance biodiversity crucial to sustainable food security.

Keywords:

System of Rice Intensification (SRI), diversity, paddy, insect pests

---

Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 3&4
Category: Environment
Pages: 2861-2865

---

Full text for Subscribers

---

Information:

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

---

Purchase this Article:   20 Purchase PDF Order Reprints for 15

---

Share this article :