Abstract
Results of field studies on evaluation of suggestive modules for management of safflower aphid (Dactynotus carthemi HRL) (Homoptera: Aphididae), carried out during Rabi 2013–15 in terai region of West Bengal, are reported. Dimethoate 30 per cent EC, imidacloprid 70 per cent WG, lamda cyhalothrin 5 per cent EC, triazophos 40 per cent EC, acephate 75 per cent SP, diafenthiuron 50 per cent WP and neem (1500ppm) were applied in field evaluations at their recommended doses at 15 d interval on 84 d old crop. The major insect-pest of safflower, the aphid and its predator populations were monitored at 1 d before and subsequently at 3, 7, and 14 d after spray. Two consecutive sprays of dimethoate (30% EC) provided highest control of safflower aphid (95.78%) and gave higher yield (12.42 q ha-1). The application of chemical insecticides followed by neem @1500 ppm (module 2) resulted in 81.65–88.63 per cent reduction of aphid population and the yield ranged 10.62–12.34 q ha-1. The spraying of neem @1500 ppm followed by chemical insecticides (module 3) provided 67.91–70.02 per cent control of aphid population and yielded 10.20–11.35 q ha-1. The effect of different treatments of module 2 on predator population reduction was higher. These study suggests the prospect of application of botanical following chemical insecticides to obtain better yield with least disturbance to eco-system.
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Claims 7
Claim · model-written summary
Two dimethoate sprays gave 95.78% safflower aphid control.
- Taxon
- safflower
Carthamus tinctoriuse0 - Treatment
- Two consecutive sprays of dimethoate (30% EC)e0
- Interactor
- safflower aphide0pest
- Outcome
- control of safflower aphide0
- Direction
- higheste0
- Value
- 95.78%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two consecutive sprays of dimethoate (30% EC) provided highest control of safflower aphid (95.78%) and gave higher yield (12.42 q ha-1)”
Claim · model-written summary
Two dimethoate sprays gave yield of 12.42 q ha-1.
- Taxon
- safflowerCarthamus tinctoriuse0
- Treatment
- Two consecutive sprays of dimethoate (30% EC)e0
- Interactor
- safflower aphide0pest
- Outcome
- yielde0
- Direction
- highere0
- Value
- 12.42 q ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two consecutive sprays of dimethoate (30% EC) provided highest control of safflower aphid (95.78%) and gave higher yield (12.42 q ha-1)”
Claim · model-written summary
Chemicals followed by neem reduced aphids by 81.65–88.63 per cent.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- chemical insecticides followed by neem @1500 ppme0
- Interactor
- aphide0pest
- Outcome
- aphid populatione0
- Direction
- reductione0
- Value
- 81.65–88.63 per cente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of chemical insecticides followed by neem @1500 ppm (module 2) resulted in 81.65–88.63 per cent reduction of aphid population and the yield ranged 10.62–12.34 q ha-1”
t0“safflower”
Claim · model-written summary
Chemicals followed by neem gave yield of 10.62–12.34 q ha-1.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- chemical insecticides followed by neem @1500 ppme0
- Interactor
- aphide0pest
- Outcome
- yielde0
- Direction
- rangede0
- Value
- 10.62–12.34 q ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of chemical insecticides followed by neem @1500 ppm (module 2) resulted in 81.65–88.63 per cent reduction of aphid population and the yield ranged 10.62–12.34 q ha-1”
t0“safflower”
Claim · model-written summary
Neem followed by chemicals controlled aphids by 67.91–70.02 per cent.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- neem @1500 ppm followed by chemical insecticidese0
- Interactor
- aphide0pest
- Outcome
- control of aphid populatione0
- Direction
- controle0
- Value
- 67.91–70.02 per cente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The spraying of neem @1500 ppm followed by chemical insecticides (module 3) provided 67.91–70.02 per cent control of aphid population and yielded 10.20–11.35 q ha-1”
t0“safflower”
Claim · model-written summary
Neem followed by chemicals yielded 10.20–11.35 q ha-1.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- neem @1500 ppm followed by chemical insecticidese0
- Outcome
- yielde0
- Value
- 10.20–11.35 q ha-1e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The spraying of neem @1500 ppm followed by chemical insecticides (module 3) provided 67.91–70.02 per cent control of aphid population and yielded 10.20–11.35 q ha-1”
t0“safflower”
Claim · model-written summary
Module 2 treatments caused higher predator population reduction.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- different treatments of module 2e0
- Interactor
- predatore0other
- Outcome
- predator population reductione0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of different treatments of module 2 on predator population reduction was higher”
t0“safflower”
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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.