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Author B. P. Mainali |
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Refine your searchEvaluation of Botanical Products for the Management of Aphids, Brevicoryne Brassicae in Cauliflower / Paneru, R.B. ; P. R. Bhurtyal ; B. P. Mainali ; Maharjan, R
Title : Evaluation of Botanical Products for the Management of Aphids, Brevicoryne Brassicae in Cauliflower Material Type: printed text Authors: Paneru, R.B., Author ; P. R. Bhurtyal, Author ; B. P. Mainali, Author ; Maharjan, R, Author Pagination: 346-351 p. Languages : English (eng) Keywords: aphtds, aqueous extract, bOtantcals, environment, human health, toxtc restducs Abstract: A study was carried out during 2001/02 and 2002103 in order.to test the efficacy of locally
available botanicals in crude form against aphids on cauliflower under natural epiphytotic
condition. Based on number of aphids and quantity of seed yield, the treatments, chinaberl)'
seed extract with tobacco decoction and biomulti-neem @ 3ml/litre with addition of tobacco
decoction were found more effective treatmems as compared to sole spray of biomultineem
@ 5 mlllitre, aqueollS extract of chinaberry seed. This study indicated that aphid population
was increased attaining its highest peak with the rise in temperature. Plants were found
unable to tolerate attack of aphids in sole water spray plots. Application of Titiodan 35 EC
@ 1.5 mVlitre water was most effective treatment to manage aphids. Considering several
negative side effects of chemical insecticides to lwman health and environme111, application
of neem products and chinaberry seed extract with addition of tobacco solution could be
desirable technique for the management of aphids on cauliflower.Link for e-copy: http://elibrary.narc.gov.np/?r=562 Evaluation of Botanical Products for the Management of Aphids, Brevicoryne Brassicae in Cauliflower [printed text] / Paneru, R.B., Author ; P. R. Bhurtyal, Author ; B. P. Mainali, Author ; Maharjan, R, Author . - [s.d.] . - 346-351 p.
Languages : English (eng)
Keywords: aphtds, aqueous extract, bOtantcals, environment, human health, toxtc restducs Abstract: A study was carried out during 2001/02 and 2002103 in order.to test the efficacy of locally
available botanicals in crude form against aphids on cauliflower under natural epiphytotic
condition. Based on number of aphids and quantity of seed yield, the treatments, chinaberl)'
seed extract with tobacco decoction and biomulti-neem @ 3ml/litre with addition of tobacco
decoction were found more effective treatmems as compared to sole spray of biomultineem
@ 5 mlllitre, aqueollS extract of chinaberry seed. This study indicated that aphid population
was increased attaining its highest peak with the rise in temperature. Plants were found
unable to tolerate attack of aphids in sole water spray plots. Application of Titiodan 35 EC
@ 1.5 mVlitre water was most effective treatment to manage aphids. Considering several
negative side effects of chemical insecticides to lwman health and environme111, application
of neem products and chinaberry seed extract with addition of tobacco solution could be
desirable technique for the management of aphids on cauliflower.Link for e-copy: http://elibrary.narc.gov.np/?r=562 E-copies
http://nkcs.org.np/narc/dl/?r=562URL
in Agricultural research for poverty alleviation and livelihood enhancement. Proceedings of the 3rd SAS-N Convention 27-29 August 2008, Lalitpur / Paudyal, Krishna Prasad
Title : Performance of silkworm races feeding on different mulberry cultivars in mid-hill conditions Material Type: printed text Authors: Bista, S., Author ; S. Aryal, Author ; B. P. Mainali, Author ; Maharjan, R, Author Pagination: 426-431 p. Languages : English (eng) Keywords: Cocoon quality, mulberry cultivars, silkworm strains Abstract: Experiment was conducted to assess the optimum interaction between common silkworm races (J-12 and C-12) with different mulberry varieties (Kanva-2, Lun-40, K-22, Khumal-1 and Khumal-3) at Khumaltar, Lalitpur during the year 2004/05 and 2005/06. The bud initiation and senescence characteristics were found superior in Kanva–2 among the tested cultivars. The last instars larval weight was found more in Japanese strain of silkworm fed with Kanva-2, Lun-40 and K-22 cultivars while no much difference was observed in pupal weight. The mounting was faster in Chinese strains and percentage good cocoon recovery was slightly more in Japanese strains (82.75 to 90.74%) fed with Kanva-2 variety………………
Link for e-copy: http://elibrary.narc.gov.np/?r=1570 Performance of silkworm races feeding on different mulberry cultivars in mid-hill conditions [printed text] / Bista, S., Author ; S. Aryal, Author ; B. P. Mainali, Author ; Maharjan, R, Author . - [s.d.] . - 426-431 p.
in Agricultural research for poverty alleviation and livelihood enhancement. Proceedings of the 3rd SAS-N Convention 27-29 August 2008, Lalitpur / Paudyal, Krishna Prasad
Languages : English (eng)
Keywords: Cocoon quality, mulberry cultivars, silkworm strains Abstract: Experiment was conducted to assess the optimum interaction between common silkworm races (J-12 and C-12) with different mulberry varieties (Kanva-2, Lun-40, K-22, Khumal-1 and Khumal-3) at Khumaltar, Lalitpur during the year 2004/05 and 2005/06. The bud initiation and senescence characteristics were found superior in Kanva–2 among the tested cultivars. The last instars larval weight was found more in Japanese strain of silkworm fed with Kanva-2, Lun-40 and K-22 cultivars while no much difference was observed in pupal weight. The mounting was faster in Chinese strains and percentage good cocoon recovery was slightly more in Japanese strains (82.75 to 90.74%) fed with Kanva-2 variety………………
Link for e-copy: http://elibrary.narc.gov.np/?r=1570 E-copies
http://nkcs.org.np/narc/dl/?r=1570URL
Title : Survey on Magnitude of Insecticides Use in Vegetable Crops Material Type: printed text Authors: Maharjan, R, Author ; S. Aryal, Author ; B. P. Mainali, Author ; Bista, S., Author ; Manandhar, D.N., Author ; Giri, Y.P., Author ; Paneru, R.B., Author Pagination: 291-298 p. Languages : English (eng) Keywords: insect pests, mid-hills, pesticides, tcrai, vegetable crops Abstract: A survey was carried out in vegetable pocket areas of Dhankuta, Baglung, Dhading (midhills)
and Bara (tercti) Districts with an objective to fitul out the magnitude of pesticide use in
different vegetable crops. A total of 25-35 vegetable farmers were interrogated from each
district using semi-structured questionnaires. Effons were made to gather information on
types of vegetable grown, prevalence of insect pests and diseases, extent of damage caused
by pests and commonly used pest management methods and materials, and pesticide
application frequencies. Data showed that the cabbage, cauliflower, rayo, pea, radish.
carrot, eggplants. onion, different kinds of gourds, cucumber etc are the major vegetable
crops grown in all surveyed districts. Insect pests were identified as the major cause for
quantitative and qualitative loss in vegetable crops in all the districts. Most damaging insects
in the mid-hills in different seasons were aphid, white grub, diamond back moth, cabbage
buttetfly, red ant, cutworms, flea beetles, fntit fly, whereas eggplant shoot and fruit borer,
red pumpkin beetle, fmit fly, cab~age butteifly were found responsible for major damages in
terai plains. All the interrogated farmers applied chemical pesticides for the management of
these pests. The major chemical pesticides that were used for the management of pests like
aphids, diamond back moth and cabbage buttetf/y were metacid, anumite, cypermethrin etc.
and pesticides often used to manage soil insects (red ant, cut worm, white grub) were
clzloropyriphO.\', phorate and malathion dusts. The pesticide frequency of pesticide
application wa~ higher in summer vegetable crops i.e. 10-22 times in a crop season as
compared to wiflter vegetable crops (2-16 times/crop season) in all the four districts.Link for e-copy: http://elibrary.narc.gov.np/?r=517 Survey on Magnitude of Insecticides Use in Vegetable Crops [printed text] / Maharjan, R, Author ; S. Aryal, Author ; B. P. Mainali, Author ; Bista, S., Author ; Manandhar, D.N., Author ; Giri, Y.P., Author ; Paneru, R.B., Author . - [s.d.] . - 291-298 p.
Languages : English (eng)
Keywords: insect pests, mid-hills, pesticides, tcrai, vegetable crops Abstract: A survey was carried out in vegetable pocket areas of Dhankuta, Baglung, Dhading (midhills)
and Bara (tercti) Districts with an objective to fitul out the magnitude of pesticide use in
different vegetable crops. A total of 25-35 vegetable farmers were interrogated from each
district using semi-structured questionnaires. Effons were made to gather information on
types of vegetable grown, prevalence of insect pests and diseases, extent of damage caused
by pests and commonly used pest management methods and materials, and pesticide
application frequencies. Data showed that the cabbage, cauliflower, rayo, pea, radish.
carrot, eggplants. onion, different kinds of gourds, cucumber etc are the major vegetable
crops grown in all surveyed districts. Insect pests were identified as the major cause for
quantitative and qualitative loss in vegetable crops in all the districts. Most damaging insects
in the mid-hills in different seasons were aphid, white grub, diamond back moth, cabbage
buttetfly, red ant, cutworms, flea beetles, fntit fly, whereas eggplant shoot and fruit borer,
red pumpkin beetle, fmit fly, cab~age butteifly were found responsible for major damages in
terai plains. All the interrogated farmers applied chemical pesticides for the management of
these pests. The major chemical pesticides that were used for the management of pests like
aphids, diamond back moth and cabbage buttetf/y were metacid, anumite, cypermethrin etc.
and pesticides often used to manage soil insects (red ant, cut worm, white grub) were
clzloropyriphO.\', phorate and malathion dusts. The pesticide frequency of pesticide
application wa~ higher in summer vegetable crops i.e. 10-22 times in a crop season as
compared to wiflter vegetable crops (2-16 times/crop season) in all the four districts.Link for e-copy: http://elibrary.narc.gov.np/?r=517 E-copies
http://nkcs.org.np/narc/dl/?r=517URL
Title : System Analysis of Potato Tuber Moth, Pestilence in the Potato Crop Husbandry in Kathmandu Valley Material Type: printed text Authors: Joshi, S.L., Author ; Khatri, B.B., Author ; Shrestha, S.L., Author ; J. Lorenzen, Author ; B. P. Mainali, Author Pagination: 217-220 p. Languages : English (eng) Keywords: husbandry, potato tuber moth, system analysis Abstract: Twelve varieties of potato in Sankltu and Mulpani and 6 varieties in Panchkhal were found
cultivated in the intellSive potato cultivated areas of Kathmandu valley. Potato cultivars,
Cardinal, Desiree, Kufri Jyoti and NPI /06 were common varieties to all localities. Cardinal
was the most preferred variety. Potato tuber moth (PTM), both in the standing crop and in the
storage was the most imponant biotic factor depleting the harvest. Synthetic chemical pesticides
like methyl parathion, de/tamethrin, dich/orvos, and dimethoate were used as foliar spray on the
standing crop. To mitigate PTM in the stored potatoes either shade dried botanicals like
Animesia mtd China berry or synthetic chemical insecticides like methyl parathion or
dimethoate or dichlorvos or malathion dust were used. Pesticide management of PTM and
diseases in potato crop involved an expr;nse of as low as 0.5% of the cultivated cost (Mulpani)
to as high as 15% (Sankhu and Panchkhal) of the total cost of cultivation. The farmers preferred
red skinned PTM resistant varieties.Link for e-copy: http://elibrary.narc.gov.np/?r=499 System Analysis of Potato Tuber Moth, Pestilence in the Potato Crop Husbandry in Kathmandu Valley [printed text] / Joshi, S.L., Author ; Khatri, B.B., Author ; Shrestha, S.L., Author ; J. Lorenzen, Author ; B. P. Mainali, Author . - [s.d.] . - 217-220 p.
Languages : English (eng)
Keywords: husbandry, potato tuber moth, system analysis Abstract: Twelve varieties of potato in Sankltu and Mulpani and 6 varieties in Panchkhal were found
cultivated in the intellSive potato cultivated areas of Kathmandu valley. Potato cultivars,
Cardinal, Desiree, Kufri Jyoti and NPI /06 were common varieties to all localities. Cardinal
was the most preferred variety. Potato tuber moth (PTM), both in the standing crop and in the
storage was the most imponant biotic factor depleting the harvest. Synthetic chemical pesticides
like methyl parathion, de/tamethrin, dich/orvos, and dimethoate were used as foliar spray on the
standing crop. To mitigate PTM in the stored potatoes either shade dried botanicals like
Animesia mtd China berry or synthetic chemical insecticides like methyl parathion or
dimethoate or dichlorvos or malathion dust were used. Pesticide management of PTM and
diseases in potato crop involved an expr;nse of as low as 0.5% of the cultivated cost (Mulpani)
to as high as 15% (Sankhu and Panchkhal) of the total cost of cultivation. The farmers preferred
red skinned PTM resistant varieties.Link for e-copy: http://elibrary.narc.gov.np/?r=499 E-copies
http://nkcs.org.np/narc/dl/?r=499URL
Title : Use of Insecticides on Vegetable Crops in Dhading District Material Type: printed text Authors: Giri, Y.P., Author ; B. P. Mainali, Author ; S. Aryal, Author ; Paneru, R.B., Author ; Bista, S., Author ; Maharjan, R, Author Pagination: 431-438 p. Languages : English (eng) Keywords: insect pests,, mid-hills, pesticides, vegetable farming, survey Abstract: Vegetable farming has become a profitable business along the roadside of mid-hills of Nepal.
Dhusatar VDC of Dhadhing is one of the vegetable farming pockets located in mid-hill just
82 km away from the capital (Kathmandu). A study was carried out in Dhusatar pocket
during 1999 through focus group discussion and household survey methods in order to
collect the information related with status of pesticide use for the insect pest managemeflt
over existing vegetable growing practices and land use pattern. Majority of cultivated land
was occupied by vegetable fam1ing, especially eggplant and cabbage during summer and
winter season respectively. These vegetables were grown in all types of land (Khet, Bari and
Pakho). Eggplant-cabbage cropping pattern was dominant one. The insect pests such as,
eggplant shoot and fruit borer (Leucinodes orbonalis Guenee), fruit fly (Dacus cucurbitae)
and hoppers (Homopteran) were major problems to crops causing about I 1 to 50% losses in
crop yield through combining pest complex illteraction. Similarly, cabbage butteifly (Pieris
brassicae Doubleday), tobacco caterpillar {Spodoptera litura Fab.), aphids {Aphis sp.),
diamond back moth (Plutella xylostella L). cut worms (Agrotis sp.) and tomato fruit borer
(Helicoverpa armigera Hubner) were major problems in winter season inflicting up to 30%
losses. The use .of chemical insecticides· was oi1ly the means adopted by farmers for· insect
pest management. The chemical pesticide belonging to Syllthetic pyrethroid and
Organophosphate groups were commonly used by the farmers with an increased dose and
frequency over the years. Moreover, the recommended dose, application method and safety
measures for the application of pesticides were also not properly followed by the famlers.
The survey has clearly indicated that majority of famlers were not acquainted with
Integrated Pest Managemeflt approaches and they were willing to adopt methods other thar~
the use of chemical pesticides, if such altemative methods are provided by the line agencies
for restriction ofpesticidesLink for e-copy: http://elibrary.narc.gov.np/?r=683 Use of Insecticides on Vegetable Crops in Dhading District [printed text] / Giri, Y.P., Author ; B. P. Mainali, Author ; S. Aryal, Author ; Paneru, R.B., Author ; Bista, S., Author ; Maharjan, R, Author . - [s.d.] . - 431-438 p.
Languages : English (eng)
Keywords: insect pests,, mid-hills, pesticides, vegetable farming, survey Abstract: Vegetable farming has become a profitable business along the roadside of mid-hills of Nepal.
Dhusatar VDC of Dhadhing is one of the vegetable farming pockets located in mid-hill just
82 km away from the capital (Kathmandu). A study was carried out in Dhusatar pocket
during 1999 through focus group discussion and household survey methods in order to
collect the information related with status of pesticide use for the insect pest managemeflt
over existing vegetable growing practices and land use pattern. Majority of cultivated land
was occupied by vegetable fam1ing, especially eggplant and cabbage during summer and
winter season respectively. These vegetables were grown in all types of land (Khet, Bari and
Pakho). Eggplant-cabbage cropping pattern was dominant one. The insect pests such as,
eggplant shoot and fruit borer (Leucinodes orbonalis Guenee), fruit fly (Dacus cucurbitae)
and hoppers (Homopteran) were major problems to crops causing about I 1 to 50% losses in
crop yield through combining pest complex illteraction. Similarly, cabbage butteifly (Pieris
brassicae Doubleday), tobacco caterpillar {Spodoptera litura Fab.), aphids {Aphis sp.),
diamond back moth (Plutella xylostella L). cut worms (Agrotis sp.) and tomato fruit borer
(Helicoverpa armigera Hubner) were major problems in winter season inflicting up to 30%
losses. The use .of chemical insecticides· was oi1ly the means adopted by farmers for· insect
pest management. The chemical pesticide belonging to Syllthetic pyrethroid and
Organophosphate groups were commonly used by the farmers with an increased dose and
frequency over the years. Moreover, the recommended dose, application method and safety
measures for the application of pesticides were also not properly followed by the famlers.
The survey has clearly indicated that majority of famlers were not acquainted with
Integrated Pest Managemeflt approaches and they were willing to adopt methods other thar~
the use of chemical pesticides, if such altemative methods are provided by the line agencies
for restriction ofpesticidesLink for e-copy: http://elibrary.narc.gov.np/?r=683 E-copies
http://nkcs.org.np/narc/dl/?r=683URL
