Abstract
Finnish isolates of Beauveria bassiana (8 isolates), Metarhizium anisopliae (7), Tolypocladium sp. (2), Paecilomyces farinosus (2), P. fumosoroseus (1), Steinernema feltiae (3) and Bacillus thuringiensis ('Muscabac') were tested for efficacy against mixed populations of Delia radicum and D. floralis under field conditions in 1986–90. All pathogens were applied preventatively, the fungi as aqueous conidial or mycelial suspensions, dry conidia or dry mycelial powder. In only two of the nine experiments did B. bassiana or M. anisopliae give some control. In 1986, B. bassiana SF85–2 and Tolypocladium sp. SF85–4 (both at rate 1.2 x 109 conidia plant‐ 1), and ‘Muscabac’ (25 g 1−1, 1 dl plant−1) reduced the number of pupae by 80%, 60% and 50%, respectively, as compared with untreated and chemical (isophenphos) controls. In 1990, M. anisopliae SF86–39 at rate 1.6 x 109conidia plant−1 and 1.5 x 108 CFU plant−1 and S. feltiae SFS‐22 (35000 plant−1), increased the yield of cauliflower 2.2, 1.8, and 2.3‐fold, respectively, as compared with the untreated control, but these yields were only 19%, 15% and 19% of those of the chemical (diazinon) control. Paecilomyces isolates were ineffective in the 1986 experiment in which they were included. Our results suggest that it is difficult to find efficient control agents among the fungal and nematode species tested for use as biopesticides against cabbage root flies, but that the potential of M. anisopliae against these pests deserves further study.
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Claims 9
Claim · model-written summary
Only two of nine experiments found some fly control by Beauveria bassiana or Metarhizium anisopliae.
- Taxon
- cabbage
Brassica oleracea var. capitatat0 - Interactor
- B. bassiana
Beauveria bassianae0biocontrol_agent - Second interactor
- M. anisopliae
Metarhizium anisopliaee0biocontrol_agent - Outcome
- some controle0
- Value
- two of the nine experimentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In only two of the nine experiments did B. bassiana or M. anisopliae give some control”
t0“cabbage”
Claim · model-written summary
Beauveria bassiana SF85–2 reduced fly pupae by 80% in 1986.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- B. bassiana SF85–2e0
- Interactor
- B. bassiana SF85–2Beauveria bassianae0biocontrol_agent
- Outcome
- number of pupaee0
- Direction
- reducede0
- Value
- 80%e0
- Comparator
- untreated and chemical (isophenphos) controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1986, B. bassiana SF85–2 and Tolypocladium sp. SF85–4 (both at rate 1.2 x 109 conidia plant‐ 1), and ‘Muscabac’ (25 g 1−1, 1 dl plant−1) reduced the number of pupae by 80%, 60% and 50%, respectively, as compared with untreated and chemical (isophenphos) controls”
t0“cabbage”
Claim · model-written summary
Tolypocladium sp. SF85–4 reduced fly pupae by 60% in 1986.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- Tolypocladium sp. SF85–4e0
- Interactor
- Tolypocladium sp. SF85–4e0biocontrol_agent
- Outcome
- number of pupaee0
- Direction
- reducede0
- Value
- 60%e0
- Comparator
- untreated and chemical (isophenphos) controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1986, B. bassiana SF85–2 and Tolypocladium sp. SF85–4 (both at rate 1.2 x 109 conidia plant‐ 1), and ‘Muscabac’ (25 g 1−1, 1 dl plant−1) reduced the number of pupae by 80%, 60% and 50%, respectively, as compared with untreated and chemical (isophenphos) controls”
t0“cabbage”
Claim · model-written summary
Muscabac reduced fly pupae by 50% in 1986.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- ‘Muscabac’e0
- Outcome
- number of pupaee0
- Direction
- reducede0
- Value
- 50%e0
- Comparator
- untreated and chemical (isophenphos) controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1986, B. bassiana SF85–2 and Tolypocladium sp. SF85–4 (both at rate 1.2 x 109 conidia plant‐ 1), and ‘Muscabac’ (25 g 1−1, 1 dl plant−1) reduced the number of pupae by 80%, 60% and 50%, respectively, as compared with untreated and chemical (isophenphos) controls”
t0“cabbage”
Claim · model-written summary
Metarhizium anisopliae SF86–39 increased cauliflower yield 2.2-fold over untreated control.
- Taxon
- cauliflower
Brassica oleracea var. botrytise0 - Treatment
- M. anisopliae SF86–39 at rate 1.6 x 109conidia plant−1e0
- Interactor
- M. anisopliae SF86–39Metarhizium anisopliaee0biocontrol_agent
- Outcome
- yield of cauliflowere0
- Direction
- increasede0
- Value
- 2.2e0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“M. anisopliae SF86–39 at rate 1.6 x 109conidia plant−1 and 1.5 x 108 CFU plant−1 and S. feltiae SFS‐22 (35000 plant−1), increased the yield of cauliflower 2.2, 1.8, and 2.3‐fold, respectively, as compared with the untreated control”
Claim · model-written summary
The second Metarhizium anisopliae SF86–39 dose increased cauliflower yield 1.8-fold.
- Taxon
- cauliflowerBrassica oleracea var. botrytise0
- Treatment
- 1.5 x 108 CFU plant−1e0
- Interactor
- M. anisopliae SF86–39Metarhizium anisopliaee0biocontrol_agent
- Outcome
- yield of cauliflowere0
- Direction
- increasede0
- Value
- 1.8e0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“M. anisopliae SF86–39 at rate 1.6 x 109conidia plant−1 and 1.5 x 108 CFU plant−1 and S. feltiae SFS‐22 (35000 plant−1), increased the yield of cauliflower 2.2, 1.8, and 2.3‐fold, respectively, as compared with the untreated control”
Claim · model-written summary
Steinernema feltiae SFS‐22 increased cauliflower yield 2.3-fold over untreated control.
- Taxon
- cauliflowerBrassica oleracea var. botrytise0
- Treatment
- S. feltiae SFS‐22 (35000 plant−1)e0
- Interactor
- S. feltiae SFS‐22
Steinernema feltiaee0biocontrol_agent - Outcome
- yield of cauliflowere0
- Direction
- increasede0
- Value
- 2.3‐folde0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S. feltiae SFS‐22 (35000 plant−1), increased the yield of cauliflower 2.2, 1.8, and 2.3‐fold, respectively, as compared with the untreated control”
Claim · model-written summary
Paecilomyces isolates were ineffective in the 1986 experiment.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- Paecilomyces isolatese0
- Interactor
- Paecilomyces
Paecilomycese0biocontrol_agent
- Outcome
- ineffectivee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Paecilomyces isolates were ineffective in the 1986 experiment in which they were included”
t0“cabbage”
Claim · model-written summary
The authors recommend further study of Metarhizium anisopliae as a control agent against cabbage root flies.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Interactor
- M. anisopliaeMetarhizium anisopliaee0biocontrol_agent
- Outcome
- deserves further studye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the potential of M. anisopliae against these pests deserves further study”
t0“cabbage”
The same questions in other papers
Metarhizium anisopliae · yield · Brassica oleracea (wild cabbage)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.