Abstract
Ultraviolet (UV)-absorbing plastic films are being used as a photoselective barrier to control insect vectors and associated virus diseases in different horticultural crops. A 2-year experiment was carried out in northeastern Spain (Navarra) to evaluate the impact of a UV-blocking film (AD-IR AV) on the population density of insect pests and the spread of insect-transmitted virus diseases associated with head lettuce [ Lactuca sativa (L.)]. Results showed that the UV-absorbing plastic film did not loose its ability to filter UV radiation after three lettuce crop cycles (14 months). The UV-absorbing plastic film was effective in reducing the abundance and in delaying the colonization of lettuce by aphids [ Macrosiphum euphorbiae (Thomas) and Acyrthosiphum lactucae (Passerini)]. A significant increase in the percentage of marketable plants was achieved under UV-absorbing films due to a reduction in the number of plants infested by aphids and by insect-transmitted virus diseases (mainly potyviruses). Also the UV-absorbing plastic films were effective in reducing the population density of Frankliniella occidentalis (Pergande) and the spread of tomato spotted wilt virus (TSWV) as well as the population density of the lepidopteran pest, Autographa gamma (L.), a common pest of lettuce in Spain. However, no effective control of the greenhouse whitefly Trialeurodes vaporariorum (Westwood) was achieved. The results showed that UV-absorbing plastic films are a very promising tool to protect greenhouse lettuce from the main pests and insect-transmitted virus diseases occurring in northeastern Spain.
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Claims 10
Claim · model-written summary
The film retained UV filtering ability after three lettuce crop cycles.
- Taxon
- Lactuca sativa
Lactuca sativae1 - Outcome
- ability to filter UV radiatione0
- Direction
- did not loosee0
- Value
- 14 monthse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-absorbing plastic film did not loose its ability to filter UV radiation after three lettuce crop cycles (14 months)”
e1“head lettuce [ Lactuca sativa (L.)]”
Claim · model-written summary
UV absorbing film reduced aphid abundance on lettuce.
- Taxon
- lettuceLactuca sativae0
- Treatment
- UV-absorbing plastic filme0
- Interactor
- Macrosiphum euphorbiae
Macrosiphum euphorbiaee0pest - Second interactor
- Acyrthosiphum lactucaee0pest
- Outcome
- abundancee0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-absorbing plastic film was effective in reducing the abundance and in delaying the colonization of lettuce by aphids [ Macrosiphum euphorbiae (Thomas) and Acyrthosiphum lactucae (Passerini)]”
Claim · model-written summary
UV absorbing film delayed aphid colonization of lettuce.
- Taxon
- lettuceLactuca sativae0
- Treatment
- UV-absorbing plastic filme0
- Interactor
- Macrosiphum euphorbiaeMacrosiphum euphorbiaee0pest
- Second interactor
- Acyrthosiphum lactucaee0pest
- Outcome
- colonization of lettuce by aphidse0
- Direction
- delayinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-absorbing plastic film was effective in reducing the abundance and in delaying the colonization of lettuce by aphids [ Macrosiphum euphorbiae (Thomas) and Acyrthosiphum lactucae (Passerini)]”
Claim · model-written summary
UV absorbing films significantly increased the percentage of marketable lettuce plants.
- Taxon
- Lactuca sativaLactuca sativae1
- Treatment
- UV-absorbing filmse0
- Outcome
- percentage of marketable plantse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant increase in the percentage of marketable plants was achieved under UV-absorbing films”
e1“head lettuce [ Lactuca sativa (L.)]”
Claim · model-written summary
UV absorbing films reduced aphid infested lettuce plants.
- Taxon
- Lactuca sativaLactuca sativae2
- Treatment
- UV-absorbing filmse1
- Interactor
- aphidsAphidomorphae0pest
- Outcome
- number of plants infested by aphidse0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduction in the number of plants infested by aphids”
e1“UV-absorbing films”
e2“head lettuce [ Lactuca sativa (L.)]”
Claim · model-written summary
UV absorbing films reduced lettuce plants affected by insect transmitted virus diseases.
- Taxon
- Lactuca sativaLactuca sativae2
- Treatment
- UV-absorbing filmse1
- Outcome
- plants infested by aphids and by insect-transmitted virus diseasese0
- Direction
- reductione0
PotyvirusNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduction in the number of plants infested by aphids and by insect-transmitted virus diseases (mainly potyviruses)”
e1“UV-absorbing films”
e2“head lettuce [ Lactuca sativa (L.)]”
Claim · model-written summary
UV absorbing films reduced Frankliniella occidentalis population density.
- Taxon
- Lactuca sativaLactuca sativae1
- Treatment
- UV-absorbing plastic filmse0
- Interactor
- Frankliniella occidentalis
Frankliniella occidentalise0pest - Outcome
- population density of Frankliniella occidentalise0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-absorbing plastic films were effective in reducing the population density of Frankliniella occidentalis (Pergande)”
e1“head lettuce [ Lactuca sativa (L.)]”
Claim · model-written summary
UV absorbing films reduced spread of tomato spotted wilt virus.
- Taxon
- Lactuca sativaLactuca sativae2
- Treatment
- UV-absorbing plastic filmse0
- Interactor
- tomato spotted wilt virus
Orthotospovirus tomatomaculaee1pathogen - Outcome
- spread of tomato spotted wilt viruse1
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-absorbing plastic films were effective in reducing”
e1“spread of tomato spotted wilt virus (TSWV)”
e2“head lettuce [ Lactuca sativa (L.)]”
Claim · model-written summary
UV absorbing films reduced Autographa gamma population density.
- Taxon
- Lactuca sativaLactuca sativae2
- Treatment
- UV-absorbing plastic filmse0
- Interactor
- Autographa gamma
Autographa gammae1pest - Outcome
- population density of the lepidopteran pest, Autographa gammae1
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-absorbing plastic films were effective in reducing”
e1“population density of the lepidopteran pest, Autographa gamma (L.)”
e2“head lettuce [ Lactuca sativa (L.)]”
Claim · model-written summary
UV absorbing films did not effectively control greenhouse whitefly.
- Taxon
- Lactuca sativaLactuca sativae2
- Treatment
- UV-absorbing plastic filmse1
- Interactor
- Trialeurodes vaporariorum
Trialeurodes vaporariorume0pest - Outcome
- control of the greenhouse whitefly Trialeurodes vaporariorume0
- Direction
- no effective controle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no effective control of the greenhouse whitefly Trialeurodes vaporariorum (Westwood) was achieved”
e1“Also the UV-absorbing plastic films were effective”
e2“head lettuce [ Lactuca sativa (L.)]”
The same questions in other papers
uv · quality: postharvest · Lactuca sativa (garden lettuce)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
uv · Macrosiphum euphorbiae · Lactuca sativa (garden lettuce)Results agree
1 paper in the same direction as this paper
- 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.