PERKEMBANGAN Spodoptera frugiperda J.E Smith  PADA TANAMAN JAGUNG MANIS (Zea mays L. Saccharata)

Wilyus, Wilyus; Siregar, Hamdan Maruli; Aulia, Rizki

doi:10.33087/jagro.v6i2.121

Cited by 2 publications

(3 citation statements)

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“…The high attack of S. frugiperda is related to the high population level of larvae which also affects the intensity of attacks that occur [28]. The results of observations of S. frugiperda attack intensity in four treatments are presented in Table 3.…”

Section: Resultsmentioning

confidence: 99%

Field trial of new Bt-base bioinsecticide formula, Bashield®, for controlling Spodoptera frugiperda J.E. Smith on maize

Djunaedy,

Khoiri,

Firdaus

et al. 2024

E3S Web Conf.

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Maize is one of the important staple crops. The process of cultivating corn cannot be separated from pests and plant diseases, one of the attacking pests is Spodoptera frugiperda, which can attack the growing points of plants causing a decrease in corn production. Based on previous research conducted in vitro, bioinsecticide of Bacillus thuringiensis-base (Bt-base) liquid formula (namely Bashield®) was able to reduce pupal weight, the proportion of larvae-pupae, and pupal becomes abnormal. Action that can be taken to control this attack is by utilizing biological agent, B. thuringiensis strain BT2, as an alternative control. This research aims to evaluate or to determine the effectiveness of a new bioinsecticide of Bt-base liquid formula (Bashield®), as a control agent for S. frugiperda on maize in the field. This research was prepared at the Laboratory of Plant Protection and Environment, Universitas Trunojoyo Madura, and was conducted at the Horticultural Seed Garden, Socah District, Bangkalan Regency, East Java, Indonesia (7°05'17.2"S 112°42'32.0"E). The design used was a complete randomized block design (CRBD) with 4 treatments and 6 replications. The data were analyzed using 5% ANOVA and if there was a significant effect, then a DMRT follow-up test was carried out with a 5% level. The results showed that the 15% treatment was able to kill test larvae up to 78% with a high virulence level, and reduced damage up to 100%. In conclusion, the new Bt-base liquid formula, Bashield®, has good potential for effective biocontrol and contributed as a new biopesticide for S. frugiperda.

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Section: Resultsmentioning

confidence: 99%

Field trial of new Bt-base bioinsecticide formula, Bashield®, for controlling Spodoptera frugiperda J.E. Smith on maize

Djunaedy,

Khoiri,

Firdaus

et al. 2024

E3S Web Conf.

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“…Pelaksanaan penelitian dilakukan menggunakan metode ekplorasi, yaitu dengan cara mengamati secara langsung serangan larva S. frugiperda pada semua fase pertumbuhan tanaman jagung. Fase pertumbuhan yang dimaksud pada penelitian ini terdiri dari 6 fase, yaitu fase V3 -V5 (daun terbuka sempurna 3 -5 helai), fase V6 -V10 (daun terbuka sempurna 6 -10 helai), fase V11 -Vn (daun terbuka sempurna 11 helai sampai daun terakhir 15 -18 helai), fase VT -R1 (tasseling -silking), fase R2 -R5 (blister -pengerasan biji), dan fase R6 (masak fisiologis) (Wilyus et al 2021).…”

Section: Metode Penelitianunclassified

“…Intensitas serangan S. frugiperda umumnya berkaitan dengan tingkat populasinya. Sebagaimana hasil penelitian sebelumnya bahwa semakin tinggi tingkat populasi S. frugiperda maka semakin tinggi pula persentase tanaman terserang, begitu juga dengan intensitas serangannya pada daun (Wilyus et al 2021). Meskipun demikian, intensitas serangan S. frugiperda yang ditemukan pada beberapa fase pertumbuhan masih tergolong ringan karena di bawah 25% (Marhani, 2018).…”

Section: Hasil Dan Pembahasan Intensitas Serangan Larva S Frugiperda ...unclassified

INTENSITAS SERANGAN Spodoptera frugiperda PADA BEBERAPA FASE PERTUMBUHAN TANAMAN JAGUNG

Wilyus

Siregar

Aulia

2022

jagro

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This study was conducted to determine the attack intensity of S. frugiperda at several stages of corn plant growth. The research was carried out at the Experimental Garden of the Faculty of Agriculture, Jambi University. The research was doneat a 5002 m area of corn plantation which consists of 28 plots with a size of 3 x 2 m for each plot. The variables observed were the intensity of attack of S. frugiperda larvae on the leaves and the percentage of cobs attacked. Observation of attack intensity of S. frugiperda was carried out at all growth phases (phases V3 - V5 to R6 phase), namely by directly observing the symptoms of attack caused by the 3 youngest leaves that were fully opened on each sample plant. Observations of attacked cobs were carried out on all plants in each sample plot starting from the VT - R1 phase to the R6 phase. The results showed that the intensity of the attack of S. frugiperda larvae that attacked the leaves at several stages of corn plant growth fluctuated. The highest attack intensity occurred in the R6 phase, which was 22.92%. Meanwhile, the attack on the cob was first found in the R2 - R5 phase, which was 10% and then experienced a significant increase to 68.57% in the R6 phase.Keywords: attack intensity, maize, S. frugiperda

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PERKEMBANGAN Spodoptera frugiperda J.E Smith PADA TANAMAN JAGUNG MANIS (Zea mays L. Saccharata)

Cited by 2 publications

References 1 publication

Field trial of new Bt-base bioinsecticide formula, Bashield®, for controlling Spodoptera frugiperda J.E. Smith on maize

Field trial of new Bt-base bioinsecticide formula, Bashield®, for controlling Spodoptera frugiperda J.E. Smith on maize

INTENSITAS SERANGAN Spodoptera frugiperda PADA BEBERAPA FASE PERTUMBUHAN TANAMAN JAGUNG

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