Abstract
The coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Scolytidae), which exists in all coffee producing zones, is a major pest. The seriousness of this scolytid was assessed in Togolese plots spread over five agroclimatic zones, by determining the attack rate from a sample of coffee trees. The work was carried out over 2 yr and revealed that weight losses were proportional to the attack rates. The average infestation rates were 5.64% in the first year and 6.36% in the second year, while total production losses amounted to 2.60% and 3.18%, respectively, for the same periods. Generally speaking, attack rates in the plots were low and varied considerably within a given zone. Plantations located on plateau were more severely attacked than those in the plains. A relationship was established between total losses and the cost of insecticide treatment; this relationship was used to calculate an economic damage threshold beyond which control proves to be cost effective.
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Claims 8
Claim · model-written summary
Coffee weight losses were proportional to the berry borer attack rates.
- Treatment
- attack ratese1
- Interactor
- coffee berry borer
Hypothenemus hampeie0pest - Outcome
- weight lossese1
- Direction
- proportionale1
CoffeaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Scolytidae)”
e1“revealed that weight losses were proportional to the attack rates”
Claim · model-written summary
The average coffee berry borer infestation rate was 5.64% in the first year.
- Interactor
- coffee berry borerHypothenemus hampeie0pest
- Outcome
- average infestation ratese1
- Value
- 5.64%e1
- Qualifier
- first yeare1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Scolytidae)”
e1“The average infestation rates were 5.64% in the first year and 6.36% in the second year, while total production losses amounted to 2.60% and 3.18%, respectively, for the same periods”
Claim · model-written summary
The average coffee berry borer infestation rate was 6.36% in the second year.
- Interactor
- coffee berry borerHypothenemus hampeie0pest
- Outcome
- average infestation ratese1
- Value
- 6.36%e1
- Qualifier
- second yeare1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Scolytidae)”
e1“The average infestation rates were 5.64% in the first year and 6.36% in the second year, while total production losses amounted to 2.60% and 3.18%, respectively, for the same periods”
Claim · model-written summary
Total production losses amounted to 2.60% in the first year.
- Interactor
- coffee berry borerHypothenemus hampeie0pest
- Outcome
- total production lossese1
- Value
- 2.60%e1
- Qualifier
- first yeare1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Scolytidae)”
e1“The average infestation rates were 5.64% in the first year and 6.36% in the second year, while total production losses amounted to 2.60% and 3.18%, respectively, for the same periods”
Claim · model-written summary
Total production losses amounted to 3.18% in the second year.
- Interactor
- coffee berry borerHypothenemus hampeie0pest
- Outcome
- total production lossese1
- Value
- 3.18%e1
- Qualifier
- second yeare1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Scolytidae)”
e1“The average infestation rates were 5.64% in the first year and 6.36% in the second year, while total production losses amounted to 2.60% and 3.18%, respectively, for the same periods”
Claim · model-written summary
Attack rates in the plots were generally low and varied considerably within a given agroclimatic zone.
- Interactor
- coffee berry borerHypothenemus hampeie0pest
- Outcome
- attack rates in the plots were low and varied considerablye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Scolytidae)”
e1“Generally speaking, attack rates in the plots were low and varied considerably within a given zone”
Claim · model-written summary
Plantations on plateau were more severely attacked than those in the plains.
- Interactor
- coffee berry borerHypothenemus hampeie0pest
- Outcome
- severely attackede1
- Direction
- moree1
- Comparator
- the plainse1
- Setting
- plateaue1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Scolytidae)”
e1“Plantations located on plateau were more severely attacked than those in the plains”
Claim · model-written summary
A relationship between total losses and the cost of insecticide treatment was used to calculate an economic damage threshold beyond which control is cost effective.
- Interactor
- coffee berry borerHypothenemus hampeie0pest
- Outcome
- economic damage thresholde1
- Comparator
- cost of insecticide treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Scolytidae)”
e1“A relationship was established between total losses and the cost of insecticide treatment; this relationship was used to calculate an economic damage threshold beyond which control proves to be cost effective”