Bioecology of oriental fruit fly (Bactrocera dorsalis Hendel) on mango (Mangifera indica L.) in orchards under four different management practices
An Oriental fruit fly, Bactrocera dorsalis Hendel, is one of the most problematic tephritid fruit flies due to the severe damages caused to conunercial fruits such as mango (Mangijera indica L.). However, the information on biology and ecology of this tcphritid species particularly on mango variety...
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis Book |
| Language: | English |
| Subjects: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| LEADER | 05373cam a2200301 7i4500 | ||
|---|---|---|---|
| 001 | 0000093947 | ||
| 005 | 20200611090000.0 | ||
| 008 | 180104s2017 my eng | ||
| 040 | |a UniSZA | ||
| 050 | 0 | 0 | |a QH541 |
| 090 | 0 | 0 | |a QH541 |b .S25 2017 |
| 100 | 0 | |a Salmah Mohamed |e author | |
| 245 | 1 | 0 | |a Bioecology of oriental fruit fly (Bactrocera dorsalis Hendel) on mango (Mangifera indica L.) in orchards under four different management practices |c Salmah binti Mohamed. |
| 264 | 0 | |c 2017. | |
| 300 | |a 104 leaves: |b some colour illustrations; |c 26cm. | ||
| 336 | |a text |2 rdacontent | ||
| 337 | |a unmediated |2 rdamedia | ||
| 338 | |a volume |2 rdacarrier | ||
| 502 | |a Thesis (Degree of Doctor of Philosophy) - Universiti Putra Malaysia, 2017 | ||
| 504 | |a Includes bibliographical references (pages 75-91) | ||
| 505 | 0 | |a 1. Introduction -- 2. Literature reviews -- 3. Infestation of fruit fly Bactrocera (Diptera: Tephritidae) on mango and its associated parasitoids -- 4. Population fluctuation of Bactrocera dorsalis (Diptera: Tephritidae) in mango orchards -- 5. Life table and demographic parameters of Bactrocera dorsalis hendel ((Diptera: Tephritidae) -- 6. Ovipositional preference of Bactrocera dorsalis (Diptera: Tephritidae) on different mango ripening stages -- 7. Summary, general conclusion, and recommendation for future research | |
| 520 | |a An Oriental fruit fly, Bactrocera dorsalis Hendel, is one of the most problematic tephritid fruit flies due to the severe damages caused to conunercial fruits such as mango (Mangijera indica L.). However, the information on biology and ecology of this tcphritid species particularly on mango variety is still lacking. Thus, this study aimed to investigate its infestation level through damaged mango fruits collection during mango fruiting season from four Chokanan mango orchards with different management practices in Jitra, Kedah (organic orchard), Bumbong Lima, Penang (unmanaged orchard), Bukit Changgang, Selangor (Good Agricultural Practices orchard) and Pulau Gadong, Malacca (conventional orchard). In addition, population fluctuation of B. dorsalis in the same mango orchards was conducted using methyl eugenol traps from mango flowering stage until harvesting stage. Moreover, the life table and demographic parameters from three cohorts of B. dorsa/is eggs as well as the oviposition behaviour and offspring of B. dorsalis females on three different Chokanan mango ripening stages [i.e, unripe, ripe and fully-ripe) at five replication were determined in the laboratory. Results show the highest fruit infestation rate was recorded in Bumbong Lima (93.09±9.00 pupae/kg) due to no proper integrated control of fruit flies was conducted whilst Jura showed the lowest infestation rate (IO.74±1.25 pupae/kg) due to better control of fruit fly populations. Among the total of 5,229 Bactrocera pupae collected from infested fruits and 33,467 male flies collected from methyl eugenol traps, B. dorsa/is showed significantly the highest numbers (P<O.05) compared to B. car(lInbo/ae in all locations indicating that it is a dominant species and a major fruit fly pest of mango in Malaysia. Bactrocera dorsalis populations show similar fluctuation trends in most locations which the flies number stan to increase in week 8 to 10 and peak numbers were recorded in week 1410 16 because at this point the fruits reached the mil lured md ripe stages, which the most favourable stage for B. dorsalis females 10 lay eggs. Monthly relative humidity contributed significantly towards the population fluctuation of B. dorsalis in Pulau Gadong, Bumbong Lima and Jitra, However, only rainfall contributed Significantly towards the population fluctuation of B. dorsalis in Bukit Changgang. Both abiotic factors are closely related to the B. dorsalis pupae development and adult emergence which they depend on the moist condition in soil and air. Age-specific survival (I,) indicated that 22.33% B. dorsalis eggs successfully reached to adults. The highest mortality recorded was in the I" instar larvae (48.59%) with K-value of 0.289 and the pattern of survivorship curves falls in type III. This high mortalities may be regarded as the key factor regulating the population size of B. dorsa/is. Age specific fecundity (rn.) showed the earliest egg laying on day 35 and the last female died on day 69. The female laid on average 4 I 0.0±6J.22 eggs. The intrinsic rate of natural increase (roo) was 0.06 per female per day with mean generation time (T,) of 46.39 days. The net reproductive rate (Ro) was 13.68 female offspring per female. Doubling time occurred in 12.38 days. This showed that the population of B. dorsalis has rapid buildup in short period of time. Fully-ripe mango was relatively preferred by B. dorsalis females to visit and oviposit eggs followed by the ripe mango in no-choice and choice experiment. In contrast, unripe mango was the least preferred for eggs oviposition by B. dorsalis in both experiments, This indicated that the fully-ripe stage is more susceptibility in terms of fruit characteristics and nutrient contents. | ||
| 610 | 2 | 0 | |a Universiti Putra Malaysia -- |x Dissertation |
| 650 | 0 | |a Insect pests -- |x Control | |
| 650 | 0 | |a Insect pests | |
| 655 | 0 | |a Dissertation, Academic | |
| 710 | 2 | |a Universiti Putra Malaysia | |
| 999 | |a 1000173557 |b Thesis |c Reference |e Tembila Thesis Collection | ||