Abstract
Abstract Hollow-fibre, laminate-flake and microencapsulated formulations of the synthetic sex pheromone (a 1:1 mixture of ( Z, Z )- and ( Z, E )-7, 11-hexadecadienyl acetate) of Pectinophora gossypiella (Saunders) were compared in large-scale mating disruption trials in Egypt in 1982. Fifty-hectare blocks of cotton were treated at regular intervals throughout the season with the formulated pheromone as the sole means of controlling the pest. The pheromone treatments were compared with conventional insecticide spray treatments in other 50-ha blocks of cotton sited in the same localities. Comparisons of numbers of infested flowers and green boils, open boll counts, crop development, yield of seed cotton, lint quality and seed damage in pheromone-and insecticide-treated blocks, showed that adequate levels of control were achieved using the pheromone formulations, which were equal in effect to the insecticide sprays. Beneficial insects were found in greater numbers in the pheromone-treated areas than in areas treated with insecticides.
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Claims 2
Claim · model-written summary
Pheromone formulations gave adequate control of pink bollworm in cotton, equal in effect to insecticide sprays.
- Taxon
- cotton
Gossypium hirsutume1 - Treatment
- pheromone formulationse2
- Interactor
- Pectinophora gossypiella
Pectinophora gossypiellat0pest - Outcome
- levels of controle2
- Direction
- equal in effecte2
- Comparator
- insecticide sprayse2
- Setting
- Egyptt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Fifty-hectare blocks of cotton were treated at regular intervals throughout the season with the formulated pheromone as the sole means of controlling the pest”
e2“adequate levels of control were achieved using the pheromone formulations, which were equal in effect to the insecticide sprays”
t0“Control of pink bollworm, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae), in Egypt by mating disruption”
Claim · model-written summary
Beneficial insects were more numerous in pheromone-treated cotton areas than in areas treated with insecticides.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- pheromone-treated arease3
- Interactor
- Beneficial insectse3biocontrol_agent
- Outcome
- Beneficial insectse3
- Direction
- greater numberse3
- Comparator
- areas treated with insecticidese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Fifty-hectare blocks of cotton were treated at regular intervals throughout the season with the formulated pheromone as the sole means of controlling the pest”
e3“Beneficial insects were found in greater numbers in the pheromone-treated areas than in areas treated with insecticides”
The same questions in other papers
pheromone · Pectinophora gossypiella · Gossypium hirsutum (cotton)Positive and negative results
4 papers in the same direction as this paper · 3 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- positive
- no effect
6 papers more in this group
See all 10 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.