Abstract
Field Surveillance was conducted on synchronization in populations build up of aphids and its predator ladybird beetles (Coccinellidae) in canola [rape] ( Brassica napus L.) field. Studies reflected that there was no app ropriate synchronization between populations of the prey and its predator that appeared later. The nominal popu lation of the predator was recorded when the population of the aphid was a t its peak and the pest started to migrate from the canola fields. This gap may only be filled up by the use of environment ally non-toxic chemicals to attract predator for ac ceptable and ecofriendly suppressive measures of insect pest. Since behavioral approaches are key elements in integrat ed pest management, insect’s food attractants technique to attract aphi d predator coccinellids ladybird beetles was tested using the foliar application of protein hydrolysate, casein, sugar a nd torula yeast. Results demonstrated that increase d population of lady beetle and reduced aphid damage occurred in treated plants in comparison with those in control. Treatm ents consisting of protein hydrolysate and sugar were more efficacious where the uppermost predator numbers were observed than in caseinapplied treatment where the slight population was d etected. Studies further revealed that the predator observed in torula yeast treated crop were moderate in numbers but sig nificantly higher than in non-treated. The aphids’ infestation was significantly low in protein hydrolysate bait spray treatment followed by sugar and torula yeast treat ments. An identical trend of grain yield was recorded in the chemically treated crop in comparison with control where drop ped yield was recorded. These results suggest that predator-attra cting strategy may be used for aphid management.
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Claims 9
Claim · model-written summary
Ladybird beetle populations appeared later than aphid populations in canola fields.
- Taxon
- canola [rape]
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napuse1 - Interactor
- aphidsAphidomorphae2pest
- Outcome
- no app ropriate synchronizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“there was no app ropriate synchronization between populations of the prey and its predator that appeared later”
e1“canola [rape] ( Brassica napus L.) field”
e2“The aphids’ infestation was significantly low in protein hydrolysate bait spray treatment followed by sugar and torula yeast treat ments”
Claim · model-written summary
Predator numbers were nominal when aphids peaked and began migrating from canola fields.
- Taxon
- canola
.jpg?width=60)
Brassica napus var. napuse0 - Interactor
- aphide0pest
- Outcome
- nominal popu lation of the predatore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The nominal popu lation of the predator was recorded when the population of the aphid was a t its peak and the pest started to migrate from the canola fields”
Claim · model-written summary
Food attractant treatments increased lady beetle populations compared with controls.
- Taxon
- canola [rape]Brassica napust0
- Treatment
- foliar application of protein hydrolysate, casein, sugar a nd torula yeaste1
- Interactor
- lady beetlee0biocontrol_agent
- Outcome
- population of lady beetlee0
- Direction
- increase de0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase d population of lady beetle and reduced aphid damage occurred in treated plants in comparison with those in control”
e1“foliar application of protein hydrolysate, casein, sugar a nd torula yeast”
t0“canola [rape] ( Brassica napus L.) field”
Claim · model-written summary
Food attractant treatments reduced aphid damage compared with controls.
- Taxon
- canola [rape]Brassica napuse2
- Treatment
- foliar application of protein hydrolysate, casein, sugar a nd torula yeaste1
- Interactor
- aphide0pest
- Outcome
- aphid damagee0
- Direction
- reducede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase d population of lady beetle and reduced aphid damage occurred in treated plants in comparison with those in control”
e1“foliar application of protein hydrolysate, casein, sugar a nd torula yeast”
e2“canola [rape] ( Brassica napus L.) field”
Claim · model-written summary
Protein hydrolysate and sugar attracted more predators than casein.
- Taxon
- canola [rape]Brassica napuse1
- Treatment
- protein hydrolysate and sugare0
- Interactor
- ladybird beetlesCoccinellidaee2biocontrol_agent
- Outcome
- predator numberse0
- Direction
- more efficaciouse0
- Comparator
- caseinapplied treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“protein hydrolysate and sugar were more efficacious where the uppermost predator numbers were observed than in caseinapplied treatment”
e1“canola [rape] ( Brassica napus L.) field”
e2“ladybird beetles (Coccinellidae)”
Claim · model-written summary
Torula yeast treatment yielded significantly more predators than no treatment.
- Taxon
- canola [rape]Brassica napuse1
- Treatment
- torula yeaste0
- Interactor
- ladybird beetlesCoccinellidaee2biocontrol_agent
- Outcome
- predatore0
- Direction
- highere0
- Comparator
- non-treatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“predator observed in torula yeast treated crop were moderate in numbers but sig nificantly higher than in non-treated”
e1“canola [rape] ( Brassica napus L.) field”
e2“ladybird beetles (Coccinellidae)”
Claim · model-written summary
Protein hydrolysate bait spray gave the lowest aphid infestation, followed by sugar and torula yeast.
- Taxon
- canola [rape]Brassica napuse1
- Treatment
- protein hydrolysate bait spray treatmente0
- Interactor
- aphidsAphidomorphae0pest
- Outcome
- aphids’ infestatione0
- Direction
- lowe0
- Comparator
- sugar and torula yeast treat mentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The aphids’ infestation was significantly low in protein hydrolysate bait spray treatment followed by sugar and torula yeast treat ments”
e1“canola [rape] ( Brassica napus L.) field”
Claim · model-written summary
Chemically treated canola had higher grain yield than controls.
- Taxon
- canola [rape]Brassica napuse1
- Treatment
- chemically treated crope0
- Outcome
- grain yielde0
- Direction
- drop pede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An identical trend of grain yield was recorded in the chemically treated crop in comparison with control where drop ped yield was recorded”
e1“canola [rape] ( Brassica napus L.) field”
Claim · model-written summary
The authors suggest predator attracting for aphid management.
- Taxon
- canola [rape]Brassica napuse1
- Interactor
- aphide0pest
- Outcome
- predator-attra cting strategy may be used for aphid managemente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“predator-attra cting strategy may be used for aphid management”
e1“canola [rape] ( Brassica napus L.) field”
The same questions in other papers
application · pest · Brassica napus (oilseed rape)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
4 papers more in this group
See all 8 papers →application · Aphidomorpha · Brassica napus (oilseed rape)Results agree
2 papers in the same direction as this paper
- 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.