Biology and insecticide sensitivity of rice white backed planthopper, sogatella furcifera (Horvath) (Hemiptera:delphacidae) in Kerala (Record no. 27479)
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| 000 -LEADER | |
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| fixed length control field | 02698nam a2200193Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20220318133910.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 140128s9999 xx 000 0 und d |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 632.6 |
| Item number | PRA/BI |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Prathibha P S |
| 245 ## - TITLE STATEMENT | |
| Title | Biology and insecticide sensitivity of rice white backed planthopper, sogatella furcifera (Horvath) (Hemiptera:delphacidae) in Kerala |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc. | Vellanikkara |
| Name of publisher, distributor, etc. | Department of Agricultural Entomology, College of Horticulture |
| Date of publication, distribution, etc. | 2006 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 61 |
| 502 ## - DISSERTATION NOTE | |
| Degree type | MSc |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | Among planthoppers infesting rice, white backed planthopper (WBPH), Sogatella furcifera (Horvath) (Hemiptera: Delphacidae) has become a menace to rice growers recently. Biology of the S. furcifera studied during winter (December) and summer months (March) showed a shorter incubation period and nymphal duration in summer when compared to the winter. The developmental cycle was longer in December. The fecundity of S. furcifera was more during March. But the per cent hatchability was higher in December. However, there was no significant difference in the per cent survival of WBPH over two seasons. The sex ratio exhibited significant difference in two seasons with more number of males during March than that in December. Population build up studied under laboratory condition recorded a reduction in fecundity of WBPH in the second generation. Feeding study conducted by honeydew test revealed that adult females produced more feeding damage than the adult males and any other stages of WBPH. The insect excreted two amino acids (glutamic acid and aspartic acid) along with the honeydew. The important natural enemies recorded were spiders (Argeops sp., Lycosa pseudoannulaata, Oxyopus spp., Thomisus spp. and Salticus spp.) and mirid predator, Cyrtorhinus lividipennis (Reut.). Two entomopathogenic fungi isolated from WBPH were identified as Aspergillus flavus (Dirk.) and Penicillium oxalicum (Currie & Thomb). This is the first report of above mentioned entomopathogenic fungal infection on WBPH. Imidacloprid and lambda cyhalothrin were more toxic to WBPH nymphs and recorded lower LC50 values. Among the tested insecticides, higher relative toxicity (compared to imidacloprid) was exhibited by lambda cyhalothrin. Under laboratory condition, phosphamidon and monocrotophos were more persistent insecticides which persisted for seven days while the DDVP persisted only for three days. There was a slight reduction in total protein content in insecticide treated samples compared to the untreated ones. |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mani Chellappan (Guide) |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | http://krishikosh.egranth.ac.in/handle/1/5810109370 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | |
| Koha item type | Theses |
| Withdrawn status | Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Permanent Location | Current Location | Shelving location | Date acquired | Full call number | Barcode | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KAU Central Library, Thrissur | KAU Central Library, Thrissur | Theses | 2014-03-18 | 632.6 PRA/BI | 172538 | 2014-03-18 | 2014-03-18 | Theses |