scholarly journals IPM: Monitoring tomato fruitworm eggs in processing tomatoes

1990 ◽  
Vol 44 (5) ◽  
pp. 12-15 ◽  
Author(s):  
Frank Zalom ◽  
Craig Weakley ◽  
Michael P. Hoffmann ◽  
L. T. Wilson ◽  
James Grieshop ◽  
...  
Keyword(s):  
Tomato Fruitworm ◽  
Processing Tomatoes

Control of Helicoverpa zea in Tomatoes with Chlorantraniliprole Applied Through Drip Chemigation

2010 ◽  
Vol 11 (1) ◽  
pp. 21 ◽  
Author(s):  
Thomas P. Kuhar ◽  
James F. Walgenbach ◽  
Hélène B. Doughty
Keyword(s):  
North Carolina ◽  
Helicoverpa Zea ◽  
Field Trials ◽  
Single Application ◽  
Beneficial Arthropods ◽  
Worker Exposure ◽  
Anthranilic Diamide ◽  
Mammalian Toxicity ◽  
Tomato Fruitworm ◽  
Reduced Risk

Chlorantraniliprole (=Rynaxypyr) is a novel anthranilic diamide insecticide that is of interest to vegetable growers because of its low mammalian toxicity and systemic properties. Field trials were conducted between 2006 and 2008 in North Carolina and Virginia to test the efficacy of chlorantraniliprole as a drip chemigation treatment on tomatoes. Drip chemigation of chlorantraniliprole at various rates and intervals significantly reduced the percentage of tomatoes damaged by tomato fruitworm (Helicoverpa zea) comparable to that typically achieved from multiple foliar applications of insecticides. The best control was achieved with two applications of chlorantraniliprole at 0.074 kg ai/ha, or a single application at 0.099 kg ai/ha. Residual ingestion bioassays showed that chlorantraniliprole was effectively taken up by the roots and was active in leaves up to 66 days after treatment (DAT), active in blossoms up to 22 DAT, but was not active in fruit. Drip chemigation of chlorantraniliprole may offer several advantages over foliar applications, including ease of application, reduced pesticide input into the environment, reduced worker exposure to pesticides, and reduced risk to beneficial arthropods. Accepted for publication 14 January 2010. Published 7 April 2010.

EFFECT OF IRRIGATION AND PLANT POPULATION ON YIELD, FRUIT SPECK AND BLOSSOM-END ROT OF PROCESSING TOMATOES

1985 ◽  
Vol 65 (4) ◽  
pp. 1011-1018 ◽  
Author(s):  
C. S. TAN ◽  
B. N. DHANVANTARI
Keyword(s):  
Soil Moisture ◽  
Lycopersicon Esculentum ◽  
Pseudomonas Syringae ◽  
Tomato Fruit ◽  
Plant Population ◽  
Southern Ontario ◽  
Available Soil Moisture ◽  
Blossom End Rot ◽  
Irrigation Effects ◽  
Processing Tomatoes

Two tomato (Lycopersicon esculentum Mill.) cultivars, Heinz-2653 and Campbell-28, were grown on Fox loamy sand in the subhumid region of southern Ontario from 1979 to 1982. Irrigation increased the marketable yields of H-2653 in a dry year, 1982, but not in the other years. Irrigation substantially increased marketable yields of C-28 in 1979 and 1982. Irrigation, when the available soil moisture (ASM) level reached 50%, was no more effective than when the ASM level in the soil was allowed to drop to 25%. Without irrigation yield increased as plant population increased in normal and wet years, but not in a dry year. Blossom-end rot (BER) of C-28 cultivar was markedly reduced by irrigation. Effects of irrigation or plant population treatments on the incidence of fruit speck did not appear to be significant.Key words: Available soil moisture, Lycopersicon esculentum, Pseudomonas syringae pv. tomato, fruit speck

DDT for Control of the Tomato Fruitworm

1944 ◽  
Vol 37 (1) ◽  
pp. 151-152 ◽  
Author(s):  
G. V. Johnson
Keyword(s):  
Tomato Fruitworm

scholarly journals POTATO APHID CONTROL IN PROCESSING TOMATOES, 2002

2005 ◽  
Vol 30 (1) ◽  
Author(s):  
Frank Zalom ◽  
Eileen Cullen ◽  
Nikki Nicola
Keyword(s):  
Potato Aphid ◽  
Aphid Control ◽  
Processing Tomatoes

Tomato Fruitworm: Development of Sequential Sampling and Comparison with Conventional Sampling in Tomatoes1

1982 ◽  
Vol 75 (3) ◽  
pp. 416-421 ◽  
Author(s):  
S. S. Nilakhe ◽  
R. B. Chalfant ◽  
S. C. Phatak ◽  
B. Mullinix
Keyword(s):  
Sequential Sampling ◽  
Tomato Fruitworm

Meeting the Nitrogen Needs of Processing Tomatoes through Winter Cover Cropping

jpa ◽  
1991 ◽  
Vol 4 (3) ◽  
pp. 330-334 ◽  
Author(s):  
Lydia J. Stivers ◽  
Carol Shennan
Keyword(s):  
Cover Cropping ◽  
Winter Cover ◽  
Processing Tomatoes
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