PESTICIDAL PROPERTIES OF CHIVE (ALLIUM SCHOENOPRASUM)AGAINST CABBAGE APHID (BREVICORYNE BRASSICAE) IN RAPE (BRASSICA NAPUS)
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Title
PESTICIDAL PROPERTIES OF CHIVE (ALLIUM SCHOENOPRASUM)AGAINST CABBAGE APHID (BREVICORYNE BRASSICAE) IN RAPE (BRASSICA NAPUS)
Creator
SHADRECK KATURUZA,
NYEMBEZI MGOCHEKI
WISDOM KURANGWA
Description
The cabbage aphid is of agricultural concern vectoring at least 20 viral pathogens in crucifers. The
aphids have demonstrated tolerance to a number of synthetic pesticides. Botanical pesticides are
reasonably sustainable and effective in suppressing cabbage aphid populations in crucifers hence
improved crop quality and yield per hectare. An experiment was run to test the efficacy of various
concentrations of a botanical pesticide derived from chive (Alliumschoneoprasum
in controlling cabbage aphid (Brevicoryne brassicae) in rape. The experiment was laid out in a
Complete randomized design (CRD) with four treatments and four replicates as follows; 12g chive
extract, 8g chive extract, 4g chive extract and 0g control (water spray). Analysis
separate mean mortality was done using Gens tat version 18 and least significant difference at 0.05
probability level was used to separate means. SPSS version 20 was used in estimating LC
excel was used in calculating the regression equation. Significant differences (p<0.05) were observed
throughout the trial, where highest mortality rates were observed in 12g chive extract (94.5%) and
lowest mortality in control (12.2%) was observed. Pesticide concentration atLC
was estimated as a concentration of 7g/l. There were no observed signs of phytotoxicity even though
other studies have shown that chances are high when the dose is increased. The experiments revealed
that chive leaf extracts had pesticidal effects hence can be used to effectively control cabbage aphid in
rape by smallholder vegetable producers.
aphids have demonstrated tolerance to a number of synthetic pesticides. Botanical pesticides are
reasonably sustainable and effective in suppressing cabbage aphid populations in crucifers hence
improved crop quality and yield per hectare. An experiment was run to test the efficacy of various
concentrations of a botanical pesticide derived from chive (Alliumschoneoprasum
in controlling cabbage aphid (Brevicoryne brassicae) in rape. The experiment was laid out in a
Complete randomized design (CRD) with four treatments and four replicates as follows; 12g chive
extract, 8g chive extract, 4g chive extract and 0g control (water spray). Analysis
separate mean mortality was done using Gens tat version 18 and least significant difference at 0.05
probability level was used to separate means. SPSS version 20 was used in estimating LC
excel was used in calculating the regression equation. Significant differences (p<0.05) were observed
throughout the trial, where highest mortality rates were observed in 12g chive extract (94.5%) and
lowest mortality in control (12.2%) was observed. Pesticide concentration atLC
was estimated as a concentration of 7g/l. There were no observed signs of phytotoxicity even though
other studies have shown that chances are high when the dose is increased. The experiments revealed
that chive leaf extracts had pesticidal effects hence can be used to effectively control cabbage aphid in
rape by smallholder vegetable producers.
Publisher
International Journal of Current Research
Date
2019
Files
Collection
Citation
SHADRECK KATURUZA, , NYEMBEZI MGOCHEKI , and WISDOM KURANGWA, “PESTICIDAL PROPERTIES OF CHIVE (ALLIUM SCHOENOPRASUM)AGAINST CABBAGE APHID (BREVICORYNE BRASSICAE) IN RAPE (BRASSICA NAPUS),” ZOU Institutional Repository, accessed August 21, 2025, https://ir.zou.ac.zw/items/show/148.
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