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All Journal E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) DWIJENAGRO: JURNAL ILMIAH Journal of Sustainable Development Science Mediagro
I Wayan Dirgayana
Program Studi Agroteknologi, Fakultas Pertanian Dan Bisnis Universitas Dwijendra
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences

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Journal : Journal of Sustainable Development Science

 1 
Exploration of Whitefly (Bemisia tabaci) (Homoptera: Aleyrodidae) on Tomato (Solanum lycopersicum Mill) in Kedisan Village, Kintamani District, Bangli Regency I Wayan Diksa Gargita; Isto Umbi Maramba Jua; I Wayan Dirgayana
Journal of Sustainable Development Science Vol 5 No 1 (2023)
Publisher : Universitas Dwijendra Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46650/jsds.5.1.1436.33-38

Abstract

The main pest of tomato plants is the whitefly Bemisia tabaci (Homoptera: Aleyrodidae). This study aims to determine the symptoms of attack, population size and percentage of attack by B. tabaci on tomato plants in Kedisan Village, Kintamani District, Bangli Regency, Bali. The research was conducted from January to March 2023 in Kedisan Village, Kintamani District, Bangli Regency. This research was carried out using a direct survey method with direct observation in the field. Sampling was carried out by purposive sampling using the diagonal sampling method with 10 sample points and 3 plant clusters were taken at each sampling point so that a total of 30 plant families were observed. The variables observed were attack symptoms, population size and percentage of B. tabaci attack on tomato plants. The data obtained were analyzed and presented in the form of tables and graphs. The results showed that B. tabaci was found on tomato plants in the farmers fields in Kedisan village. Symptoms of B. tabaci attack on tomato plants are necrotic spots and chlorosis on leaves, which are caused by damage to leaf cells and tissues due to attack by nymphs and adult insects. Pests began to be found at 14 DAP (Day after Planting) with an average of 0.37 individuals/plant and the highest population was found at 63 DAP with an average of 1.63 individuals/plant on tomato plants. The results of the analysis show that the high percentage of attacks occurred at 63 DAP of 93.33%. In general, the high number of pest populations affects the high pest attacks as evidenced by the high percentage of B. tabaci attacks.
Development Whitefly Pest Population (Bemisia tabaci G.) In Plants Cucumbers in the Pupuan Village, Tegallalang District, Gianyar Regency, Bali I Wayan Dirgayana; Dicky Marsadi
Journal of Sustainable Development Science Vol 5 No 2 (2023)
Publisher : Universitas Dwijendra Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46650/jsds.5.2.1497.64-68

Abstract

Cucumber ( Cucumis sativus Linn. ) is one plant lots of fresh vegetables consumed Indonesian society . Production your cucumber affected by the attack Whitefly pest ( Bemisia _ tabaci ). study This aim For know the presence of whitefly ( Bemisia tabaci ) on plants cucumbers in the Village Pupuan , District Tegallalang , Regency Gianyar . Study This held with observation or exploration in a way directly on the land plant cucumber . Study using 5 grid plots observation . In each plot, 5 clumps were observed plants , determination plant sample done with method diagonal sampling method . Total plants observed cucumber _ as sampling is 25 clusters plant . Observation held every a week very . Research result shows the Bemesia Pest tabaci are found in the field plant cucumbers at 14 Days After Plant with average number of nymphs 0.4 and imago 0.2 / Plant and Number population pest Bemesia tabaci on plants cucumber increase from observation I arrived _ observation to -VIII
Co-Authors Dicky Marsadi Dicky Marsadi GARGITA, I WAYAN DIKSA I KETUT SUMIARTHA I Made Mega Adnyana Isto Umbi Maramba Jua Made Mika Astuthi Viktoria Asni