Swibawa, I Gede and Agustin, Yuli and Purnomo, . and Utomo, Setyo Dwi (2018) INFESTATION RATE AND POPULATION DENSITY OF MEALYBUGS AND RED MITES ON ELEVEN CASSAVA CLONES. In: International Conference on Cassava, November 23 - 24 2017, Emersia Hotel, Bandar Lampung. (In Press)

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Swibawa et al. 2018. Infestation rate and population density of red mites and mealybugs (1).doc

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The cassava mealybug (Phenacoccus manihoti), papaya mealybug (Paracoccus marginatus) and spider mites (Tetranychus spp.) were major pest of cassava in Lampung, the largest producer of cassava in Indonesia. The objectives of this study were to estimate the infestation rate and population density of mealybugs and red mite on 11 clones of cassava. The study was conducted in the field research station University of Lampung, Bandar Lampung from October 2016 to May 2017. The wxperiment was arranged in completely-randomized block design with three replication. The 11 clones evaluated were, Cimanggu, Bendo 3A , Duwet 3A, Bl-1A , UJ 5, GM-1, UJ 3, Sembung, BL-2, Batak , and Mulyo 3. Each experimental unit consisted 10 plants in one row; the planting distance were 50cm whitin row, and 100cm between rows. Infestation rate of mealybugs and red mites and population density were observed in each three leaves from base, midle and top of canopy. The results indicated that the population density of red mites and mealybugs on clone Mulyo-3 were 61.4 and 50.8 indiv./3leaves respectively; the density were higher than that of others clones. The infestation rate of red mite and mealybug were also higher on Mulyo-3 than that of the others clones. On the other hand, the population density and infestation rate of red mite and mealybug for BL-2, Bendo-3A, and UJ-3 were lower other clones. The conclusion was that the clone of Mulyo-3 was succektible and BL-2, , Bendo-3A, and UJ-3 were resistant to infestation of red mites and mealybugs. Keyword: Cassava clones, melaybugs, red mites, Tetrasnychus spp., Phenacoccus manihoti

Item Type: Conference or Workshop Item (Paper)
Subjects: S Agriculture > SB Plant culture
Divisions: Fakultas Pertanian (FP) > Prodi Agronomi dan Hortikultura
Depositing User: Prof. Setyo Utomo
Date Deposited: 28 Jun 2018 02:03
Last Modified: 28 Jun 2018 02:03
URI: http://repository.lppm.unila.ac.id/id/eprint/7956

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