Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Soekadar Wiryadiputra"'
Autor:
Dwi Suci Rahayu, Soekadar Wiryadiputra
Publikováno v:
Coffee and Cocoa Research Journal, Vol 35, Iss 1 (2019)
Shade plants affect the microclimates around the plants which directly affect the population of arthropods, especially insects. Therefore, this research was needed to analyze the diversity and role composition of insects in Robusta coffee plantations
Externí odkaz:
https://doaj.org/article/46de2a44decb460aab05e1c1de9e94d4
Publikováno v:
Coffee and Cocoa Research Journal, Vol 31, Iss 1, Pp 30-40 (2015)
Serangan nematoda parasit Pratylenchus coffeae menyebabkan kerusakan jaringan akar tanaman kopi. Pengendalian P. coffeae saat ini dilakukan dengan sistem pengendalian hama terpadu (PHT) yaitu dengan memadukan penggunaan klon kopi tahan dengan penggun
Externí odkaz:
https://doaj.org/article/6e80b9bfea384c1ebe60afb4ac69888e
Autor:
Irfan Fauzi, soekadar wiryadiputra
Publikováno v:
Coffee and Cocoa Research Journal, Vol 31, Iss 1 (2015)
Abstract Pratylenchus coffeae is a parasitic nematoda that infected the roots of some plants, one of them is coffee. The Infection of Pratylenchus coffeae cause root tissue damage that led to root lession and make root become rotten, it will interfe
Externí odkaz:
https://doaj.org/article/f14a42db91f449ef95a8c9fd402b81e3
Autor:
soekadar wiryadiputra
Publikováno v:
Coffee and Cocoa Research Journal, Vol 30, Iss 3 (2014)
Coffee pests known as coffe berry borer (CBB, Hypothenemus hampei) were main pests which decreasing the productivity of Indonesian coffee. One of pests controlling was done by insecticides. Generally, plant uses for insecticide show high security lev
Externí odkaz:
https://doaj.org/article/9022c546272c469c9bcc1db435bc7d81
Autor:
Soekadar Wiryadiputra
Publikováno v:
Jurnal Perlindungan Tanaman Indonesia, Vol 9, Iss 1, Pp 35-45 (2003)
The effectiveness of tobacco waste extract to control Helopeltis sp. on cocoa had been tested in laboratory and field conditions. Side effects of the extract on growth of cocoa flower and predatory insects of Helopeltis sp. had also been observed aft
Externí odkaz:
https://doaj.org/article/ad3d327117c8465890e56c06a7594d52
Autor:
Soekadar Wiryadiputra
Publikováno v:
Jurnal Perlindungan Tanaman Indonesia, Vol 8, Iss 1, Pp 18-26 (2002)
Experiment on the effect of P. lilacinus on the infestation of P. coffeae on robusta coffee was conducted in Sumber Asin Experimental Garden, Malang. The treatments were dosages of bionematicide i.e. : 0 (control), 0.25, 0.50, 1.00, 2.00, and 4.00 g;
Externí odkaz:
https://doaj.org/article/402eb84fa25d490ea1de0a7e6f2bbd01
Autor:
Soekadar Wiryadiputra
Publikováno v:
Coffee and Cocoa Research Journal, Vol 30, Iss 2 (2014)
Coffee berry borer [CBB, Hypothenemus hampei (Ferr.)] is the main pest on coffee causing a significant losses. Distribution pattern of the pest is not known deeply until now, especially in Indonesia. The data of distribution pattern of pest is very i
Externí odkaz:
https://doaj.org/article/d80ae8d64a1e4b7984eed8ead9082b95
Autor:
Soekadar Wiryadiputra
Publikováno v:
Jurnal Perlindungan Tanaman Indonesia, Vol 4, Iss 2, Pp 97-105 (1998)
Preliminary trial of neem (Azadirachta indica A. Juss.) seed oil and aqueous seed extract of custard-apple (Annona squamosa L.) on the mortality of Helopeltis sp. has been conducted in laboratory condition. Neem oil obtained from directly pressed see
Externí odkaz:
https://doaj.org/article/b2118451559a4a04975597ae42a8a46c
Publikováno v:
Coffee and Cocoa Research Journal, Vol 29, Iss 2 (2013)
Field trial of Bt insecticide formulation with a code of formulation-A +1WP against cocoa pod borer (CPB) (Conopomorpha cramerella) has been conducted at the heavily infested cocoa area in Holo village, Amahai sub district, Central Maluku regency. Fo
Externí odkaz:
https://doaj.org/article/fa35e1ccc11a4652885907fbe99efe97
Publikováno v:
Coffee and Cocoa Research Journal, Vol 29, Iss 1 (2013)
Research on the development of botanical pesticides should be developed through new methods, such as by inhibiting the activity of digestive enzymes by secondary metabolites. The aim of this study was to identify some of potential plants as a source
Externí odkaz:
https://doaj.org/article/77737550912d4279aa58990ec7d5f157