Resource Information |
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Phytotoxicity on Anthurium, Hawaii, 1992 | ||
By: T.Y. Hata and A.H. Hara
Beaumont Agri Res Center, University of Hawaii-Manoa, 46 1 W.
Lanikaula Street, Hilo, Hawaii 96720, Phone (808) 935-2885.
ANTHURIUM: Anthurium andraeanum Andre
EXPERIMENTAL PROCEDURE
Phytotoxicity trials were conducted from 5 Nov 91 through 28 Jan
1992. Mature plants growing in volcanic cinder media in 7.6 liter
bags under 80% polypropylene shade cloth were used in study 1.
Plants in study 2 were grown in a fiberglass greehouse using the
same cultural practices as study 1. In both studies, experimental
plots measured 1.8 by 1.8 m with 18 plants per treatment. Both
NTN 0.5G and NTN 240F were evaluated in study 1. Only NTN 0.5G
was evaluated in study 2. Treatments in study 1 consisted of
eight weekly foliar applications of NTN 240F (33893) at a rate of
0.03 g AI/liter applied to runoff using a compressed air sprayer
with an 8004 Teejet nozzle at 276 KPa. In both studies 1 and 2,
NTN 0.5G (33893) was applied once at a rate of 0.12 g AI/7.6
liter pot and watered immediately after treatment. Plants were
observed for phytotoxicity weekly continuing for 5 weeks after
the last application.
RESULTS
In study 1, phytotoxicity was not observed with both formulations
of NTN on the following anthurium cultivars: 'Ozaki', 'Kaumana',
'Marian Seefurth', 'Mauna Kea', 'Seapearl', and 'Nitta'. In study
2, NTN 0.5G was nonphytotoxic on the following cultivars:
'Rudolph', 'Alii', 'Tropic Ice', 'Misty Pink', 'Blushing Bride',
'UH931', 'UH780', and 'UH1003'.
PRODUCT INFORMATION
PRECAUTIONARY STATEMENT
Use pesticides safely. Follow the pesticide label. Consult with
the Cooperative Extension Service or the Hawai'i State Department
of Agriculture for authorized special local need registrations or
additional information. The user is responsible for the proper
use, application, storage, and disposal of pesticides.
DISCLAIMER
Reference to a company or product name does not imply approval or
recommendation of the product by the College of Tropical
Agriculture and Human Resources, Cooperative Extension Service
University of Hawaii, or the United State Department of
Agriculture and does not imply its approval to the exclusion of
other products that may be suitable. All materials should be used
in accordance with label instructions or manufacturer's
directions.
Product Name: NTN 33893 0.5%G
Manufacturer's Name: Miles Inc.
Address: P.O. Box 4913, 8400 Hawthorn Road Kansas City, MO 64120
Composition: imidacloprid 0.5%G
Product Name: NTN 33893 240F
Manufacturer's Name: Miles Inc.
Address: P.O. Box 4913, 8400 Hawthorn Road Kansas City, MO 64120
Composition: imidacloprid 2.0 lb active per gallon