Paper · 2025 · Ecological Engineering & Environmental Technology

Biological control of phytophages by different strains of Bacillus thuringiensis in apple orchards

Iryna Gumeniuk; Alla Levishko; Olena Sherstoboeva; et al.

10
claims
17
verbatim quotes
1
citations
3
research areas
✓
Open access · cc-by

Abstract

The study assessed the use of effective microorganisms for the control of apple tree pests.Biological control of phytophagous pests is an environmentally safe alternative to chemical impact on ecosystems.The most successful bioagent used to control insect pests is Bacillus thuringiensis.The objects of research were apple trees of the Jonagold variety.The quantitative composition of the main insect pests of the apple tree by species was determined.The strains of microorganisms were isolated from dead insects of natural populations of leaf-eating phytophagous insects of the orders Coleoptera, Hemiptera, and Lepidoptera.The effectiveness of new bioagents was compared with chemical and biological insecticides in the course of the studies.In the course of studies of the isolated strains, they were found to be able to inhibit the growth of some phytopathogenic fungi.It was shown that the studied strains BT-43, BT-18, and BT-52 have a fungistatic effect, and strain BT-10 has a fungicidal effect against Botrytis cinerea and Alternaria mali Roberts.The effectiveness of the treatment of apple orchards affected by phytophages with bioinsecticides based on selected promising strains of B. thuringiensis was tested.The strain BT-10 proved to be particularly effective against pests, the effect of which is almost equal to or superior to that of deltamethrin.Due to the high efficiency and entomocidal effectiveness against insects of Lepidoptera, it is advisable to use this biological product in the future in the system of control of leaf-eating phytophages.The treatment of apple trees with biological products contributed to a significantly higher yield than the control, which was the highest when treated with the BT-10 strain.Investigating the cost-effectiveness of the used apple protection products based on BT strains, it was shown that treatment with a chemical insecticide reduced the cost by 18% compared to the control.Thus, the research has shown that the treatment of apple plantations with pest and disease control agents is an integral element of the technology of growing and storage of fruits.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 10

Observationobservedoriginal resultmeasured

Claim · model-written summary

The study determined the species composition of main apple insect pests.

Taxon
apple treeMalus domesticae0
Outcome
quantitative composition of the main insect pestse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“The quantitative composition of the main insect pests of the apple tree by species was determined”

✓ located verbatim in the source · abstract, characters 353–450 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

BT-43 had a fungistatic effect against Botrytis cinerea and Alternaria mali Roberts.

Material
BT-43e0
Interactor
Botrytis cinereaBotrytis cinereae0pathogen
Outcome
fungistatic effecte0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗
Botrytis cinerea
Botrytis cinerea · InteractorRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the studied strains BT-43, BT-18, and BT-52 have a fungistatic effect, and strain BT-10 has a fungicidal effect against Botrytis cinerea and Alternaria mali Roberts”

✓ located verbatim in the source · abstract, characters 891–1055 · show in text ↑
t0

“apple orchards”

✓ located verbatim in the source · title, characters 84–98 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

BT-18 had a fungistatic effect against Botrytis cinerea and Alternaria mali Roberts.

Material
BT-18e0
Interactor
Alternaria mali RobertsAlternaria malie0pathogen
Outcome
fungistatic effecte0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗
Alternaria mali
Alternaria mali · Interactor · picture from its Wikimedia Commons categoryAfroBrazilian · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the studied strains BT-43, BT-18, and BT-52 have a fungistatic effect, and strain BT-10 has a fungicidal effect against Botrytis cinerea and Alternaria mali Roberts”

✓ located verbatim in the source · abstract, characters 891–1055 · show in text ↑
t0

“apple orchards”

✓ located verbatim in the source · title, characters 84–98 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

BT-52 had a fungistatic effect against the tested apple pathogens.

Material
BT-52e0
Interactor
Botrytis cinereaBotrytis cinereae0pathogen
Outcome
fungistatic effecte0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗
Botrytis cinerea
Botrytis cinerea · InteractorRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the studied strains BT-43, BT-18, and BT-52 have a fungistatic effect, and strain BT-10 has a fungicidal effect against Botrytis cinerea and Alternaria mali Roberts”

✓ located verbatim in the source · abstract, characters 891–1055 · show in text ↑
t0

“apple orchards”

✓ located verbatim in the source · title, characters 84–98 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

BT-10 had a fungicidal effect against Botrytis cinerea and Alternaria mali Roberts.

Material
BT-10e0
Interactor
Botrytis cinereaBotrytis cinereae0pathogen
Outcome
fungicidal effecte0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗
Botrytis cinerea
Botrytis cinerea · InteractorRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“strain BT-10 has a fungicidal effect against Botrytis cinerea and Alternaria mali Roberts”

✓ located verbatim in the source · abstract, characters 966–1055 · show in text ↑
t0

“apple orchards”

✓ located verbatim in the source · title, characters 84–98 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

BT-10 controlled apple pests at effectiveness almost equal to or above deltamethrin.

Treatment
BT-10e0
Outcome
effective against pestse0
Direction
almost equal to or superiore0
Comparator
deltamethrine0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“The strain BT-10 proved to be particularly effective against pests, the effect of which is almost equal to or superior to that of deltamethrin”

✓ located verbatim in the source · abstract, characters 1221–1363 · show in text ↑
t0

“apple orchards”

✓ located verbatim in the source · title, characters 84–98 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Biological products raised apple yield significantly above control.

Taxon
apple treesMalus domesticae0
Treatment
biological productse0
Outcome
yielde0
Direction
highere0
Comparator
the controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“The treatment of apple trees with biological products contributed to a significantly higher yield than the control, which was the highest when treated with the BT-10 strain”

✓ located verbatim in the source · abstract, characters 1566–1738 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

BT-10 produced the highest apple yield among tested biological treatments.

Taxon
apple treesMalus domesticae0
Treatment
BT-10 straine0
Outcome
yielde0
Direction
higheste0
Comparator
the controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“The treatment of apple trees with biological products contributed to a significantly higher yield than the control, which was the highest when treated with the BT-10 strain”

✓ located verbatim in the source · abstract, characters 1566–1738 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chemical insecticide reduced apple protection cost by 18% against control.

Treatment
chemical insecticidee0
Outcome
coste0
Direction
reducede0
Value
18%e0
Comparator
the controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“treatment with a chemical insecticide reduced the cost by 18% compared to the control”

✓ located verbatim in the source · abstract, characters 1853–1938 · show in text ↑
t0

“apple orchards”

✓ located verbatim in the source · title, characters 84–98 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors advise using the biological product against leaf-eating phytophages.

Outcome
use this biological product in the future in the system of control of leaf-eating phytophagese0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“it is advisable to use this biological product in the future in the system of control of leaf-eating phytophages”

✓ located verbatim in the source · abstract, characters 1453–1565 · show in text ↑
t0

“apple orchards”

✓ located verbatim in the source · title, characters 84–98 · show in text ↑

insecticide · yield · Malus domestica (apple)Positive and negative results

10 papers: 5 positive, 5 negative or no effect

4 papers in the same direction as this paper · 5 in the opposite direction

  1. no effect
  2. negative
  3. no effect

6 papers more in this group

See all 10 papers →

transgenic · yield · Malus domestica (apple)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

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.