Evaluating Optimal Spray Timing, Planting Date, and Current Thresholds for Lygus lineolaris (Hemiptera: Miridae) in Virginia and North Carolina Cotton

2019 ◽  
Vol 112 (3) ◽  
pp. 1207-1216 ◽  
Author(s):  
Mohammad-Amir Aghaee ◽  
Seth J Dorman ◽  
Sally V Taylor ◽  
Dominic D Reisig
Keyword(s):  
North Carolina ◽  
Planting Date ◽  
Lygus Lineolaris ◽  
Spray Timing

Seasonal dispersal of Lygus lineolaris (Hemiptera: Miridae) from weedy hosts into differently fragmented cotton landscapes in North Carolina

2019 ◽  
Vol 125 ◽  
pp. 104898
Author(s):  
Damon A. D'Ambrosio ◽  
William Peele ◽  
Allen Hubers ◽  
Anders S. Huseth
Keyword(s):  
North Carolina ◽  
Lygus Lineolaris

Systems Approach to Evaluate Tarnished Plant Bug (Hemiptera: Miridae) Management Practices in Virginia and North Carolina Cotton

2020 ◽  
Vol 113 (5) ◽  
pp. 2223-2234
Author(s):  
Seth J Dorman ◽  
Dominic D Reisig ◽  
Sean Malone ◽  
Sally V Taylor
Keyword(s):  
North Carolina ◽  
Management Practices ◽  
Field Experiments ◽  
Systems Approach ◽  
Economic Benefits ◽  
Cultural Control ◽  
Yield Potential ◽  
Lygus Lineolaris ◽  
Tarnished Plant Bug ◽  
Trade Offs

Abstract Economically damaging infestations of Lygus lineolaris (Palisot de Beauvois), tarnished plant bug, were sporadic in Virginia and North Carolina cotton before 2010. Given the sudden rise of L. lineolaris as an economic pest in these states, regionally specific management practices (i.e., chemical and cultural control) are needed to help producers protect yield potential while minimizing input costs. Field experiments were conducted in Virginia and North Carolina in 2018 and 2019 to 1) determine the effects of various management practices on L. lineolaris density, plant injury (i.e., square retention, internal boll injury), and lint yield, 2) calculate the economic trade-offs between integrated pest management (IPM) systems approach and current management practices for L. lineolaris in these states, and 3) evaluate economic benefits associated with various sampling thresholds. Lygus lineolaris populations peaked mid-season (i.e., August) during cotton flowering in both states. Weekly scouting and applying foliar insecticides when the current University Extension recommended economic threshold was reached was the most critical management treatment in maximizing economic returns. Additional costs among various IPM practices did not translate into significant yield protection and economic gains. Moreover, there were additional economic benefits associated with protecting glabrous and longer maturing varieties in Virginia. Lygus lineolaris density varied significantly between states; therefore, management recommendations should be modified based on the growing region. Results from this study will be used to create an IPM strategy to help cotton producers effectively manage this insect pest in the Southeast.

scholarly journals Influence of Planting Date, Fungicide Seed Treatment, and Phorate on Peanut in North Carolina

2019 ◽  
Vol 46 (1) ◽  
pp. 14-21
Author(s):  
D.J. Mahoney ◽  
D.L. Jordan ◽  
R.L. Brandenburg ◽  
B.B. Shew ◽  
B.R. Royals ◽  
...  
Keyword(s):  
North Carolina ◽  
Seed Treatment ◽  
Production Systems ◽  
Negative Impact ◽  
Planting Date ◽  
Soil Borne Pathogens ◽  
Arachis Hypogaea L ◽  
Treated Seed ◽  
Tobacco Thrips ◽  
Negative Impacts

ABSTRACT Establishing an adequate stand of peanut (Arachis hypogaea L.) and minimizing the negative impact of tobacco thrips [Frankliniella fusca (Hinds)] is important for maximizing yield in both organic and conventional production systems. The incidence, severity, and impact of soil borne pathogens and thrips populations on peanut may be influenced by planting date, fungicide seed treatment, and/or systemic insecticide application. However, the interaction of these management techniques has not been investigated in North Carolina with Virginia market type cultivars to date. As such, research was conducted over four years in North Carolina to determine peanut stand, injury caused by tobacco thrips feeding, and pod yield as influenced by planting date (early, mid-, and late-May), fungicide seed treatment, and phorate applied in the seed furrow at planting. Peanut stand increased when planting fungicide-treated seed compared to non-treated seed, although the magnitude of this effect lessened with later May plantings. Regardless of phorate treatment, less thrips injury was noted when peanut was planted in mid- or late-May compared with early May in three of four years. Yet the addition of phorate in-furrow further reduced thrips injury at every planting date. Peanut yield increased 75% and 50% of the time when seed was treated with fungicide and phorate was applied in the seed furrow at planting, respectively. Yield was generally greater when peanut was planted in mid-May and late-May compared to planting in early May irrespective of fungicide seed treatment or phorate treatment. Peanut stand was negatively and positively correlated with observed thrips injury and peanut yield, respectively. Additionally, peanut yield was negatively correlated to thrips injury. These data suggest that conventional producers should utilize treated seed and phorate in-furrow for thrips management regardless of planting date and that organic producers should plant in late May to minimize negative impacts of thrips and soil borne pathogens.

scholarly journals A Heat Unit Accumulation Method for Predicting Cucumber Harvest Date

1996 ◽  
Vol 6 (1) ◽  
pp. 27-30 ◽  
Author(s):  
Katharine B. Perry ◽  
Todd C. Wehner
Keyword(s):  
North Carolina ◽  
Production Systems ◽  
Planting Date ◽  
Harvest Date ◽  
Daily Maximum ◽  
Base Temperature ◽  
Harvest Dates ◽  
The Difference ◽  
Maximum Temperatures ◽  
Accumulation Method

The use of a previously developed model for predicting harvest date in cucumber production systems is described. In previous research we developed a new method using daily maximum temperatures in heat units to predict cucumber harvest dates. This method sums, from planting to harvest, the daily maximum minus a base temperature of 60F (15.5 C), but if the maximum is >90F (32C) it is replaced by 90F minus the difference between the maximum and 90F. This method was more accurate than counting days to harvest in predicting cucumber harvest in North Carolina, even when harvest was predicted using 5 years of experience for a particular location and planting date.

Lygus lineolaris. [Distribution map].

2000 ◽  
Author(s):  
Keyword(s):  
New York ◽  
North Carolina ◽  
South Carolina ◽  
Rhode Island ◽  
Prince Edward Island ◽  
District Of Columbia ◽  
Lygus Lineolaris ◽  
Distribution Map ◽  
Wide Range ◽  
New Distribution

Abstract A new distribution map is provided for Lygus lineolaris (Palisot de Beauvois) Hemiptera: Miridae An extremely polyphagous species that attacks a wide range of crops (fruit, vegetables and ornamentals). Information is given on the geographical distribution in NORTH AMERICA, Canada, Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland, Nova Scotia, Ontario, Prince Edward Island, Quebec, Saskatchewan, Mexico, USA, Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Detaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, CENTRAL AMERICA & CARIBBEAN, Bermuda, El Salvador, Guatemala, Honduras.

scholarly journals Adaptability and Reliability of Yield for Four Bell Pepper Cultivars Across Three Southeastern States

HortScience ◽  
1995 ◽  
Vol 30 (6) ◽  
pp. 1205-1210 ◽  
Author(s):  
Laurie Hodges ◽  
Douglas C. Sanders ◽  
Katharine B. Perry ◽  
Kent M. Eskridge ◽  
K.M. `Dean' Batal ◽  
...  
Keyword(s):  
North Carolina ◽  
South Carolina ◽  
Coastal Plain ◽  
Cultural Practices ◽  
Relative Sensitivity ◽  
Planting Date ◽  
Bell Pepper ◽  
Trickle Irrigation ◽  
Planting Dates ◽  
Black Plastic

Four bell pepper (Capsicum annuum L.) cultivars were evaluated for yield (total weight of marketable fruit) performance over 41 environments as combinations of 3 years, three planting dates, and seven locations across North Carolina, South Carolina, and Georgia. Cultural practices, including trickle irrigation and double rows planted on black-plastic-covered beds, were uniform across all environments, except for fertilization, which was adjusted at each location based on soil tests. Comparing production over 3 years between the mountain location and the Coastal Plain location in North Carolina, yields were lower on the Coastal Plain. Spring plantings provided higher yields than summer plantings at both locations. Yield increases were obtained from hybrid cultivars over that of the open-pollinated (OP) standard [`Keystone Resistant Giant #3' (KRG#3)] in the summer planting in the mountains compared to the Tidewater Coastal Plain. Across the three-state region, hybrid cultivar yields were higher than those of the OP cultivar for the second spring planting date in 1986 and 1987. Although the hybrid yields were higher than that of the OP standard, the hybrid `Skipper' yielded less than the other hybrids (`Gator Belle' and `Hybelle'). `Gator Belle' generally out-yielded `Hybelle' at all locations, except in Fletcher, N.C. This difference may be related to the relative sensitivity of these two cultivars to temperature extremes, rather than soil or geographic factors, because there was a tendency for `Hybelle' yields to exceed `Gator Belle' in the earliest planting date. Based on the reliability index, the chance of outperforming KRG#3 (the standard) was 85% for `Hybelle', 80% for `Gator Belle', but only 67% for `Skipper'.

scholarly journals Maximizing Soybean Yield by Understanding Planting Date, Maturity Group, and Seeding Rate Interactions in North Carolina

Crop Science ◽  
2021 ◽  
Author(s):  
T. C. Morris ◽  
R. A. Vann ◽  
J. Heitman ◽  
G. D. Collins ◽  
R. W. Heiniger
Keyword(s):  
North Carolina ◽  
Planting Date ◽  
Seeding Rate ◽  
Maturity Group ◽  
Soybean Yield

scholarly journals Influence of Planting Date and Insecticide on Injury Caused by Tobacco Thrips and Peanut Yield in North Carolina

2018 ◽  
Vol 45 (2) ◽  
pp. 70-74 ◽  
Author(s):  
D.J. Mahoney ◽  
D.L. Jordan ◽  
R.L. Brandenburg ◽  
B.R. Royals ◽  
M.D. Inman ◽  
...  
Keyword(s):  
North Carolina ◽  
Planting Date ◽  
Planting Dates ◽  
Visible Injury ◽  
Pod Yield ◽  
Frankliniella Fusca ◽  
Pest Incidence ◽  
Tobacco Thrips

ABSTRACT Planting date can affect pest incidence and severity in peanut. Research was conducted from 2013 to 2016 in North Carolina to determine tobacco thrips [Frankliniella fusca (Hinds)] injury and pod yield when peanut was planted in early, mid-, and late-May when phorate was applied in the seed furrow at planting, acephate was applied to emerged peanut 3 wk after planting, or when both insecticides were applied. Differences in visible injury to peanut caused by tobacco thrips feeding were observed across yr, planting dates, and insecticide treatments. Applying either phorate or acephate was often as effective as the combination of both insecticides in preventing injury caused by tobacco thrips although in some instances applying both insecticides was more effective than a single insecticide. Visible injury caused by tobacco thrips was often greater when peanut was planted in early May compared with later plantings. Peanut yield was protected equally from tobacco thrips injury by phorate, acephate, and the combination of both insecticides. Planting date and insecticides affected peanut yield independently suggesting that strategies for managing tobacco thrips will not differ across planting dates in North Carolina. Peanut yield was greater in 2 of 4 yr when planted in mid-May compared with planting in early or late-May.

Planting Date Effects on Heliothine Larval Numbers, Fruit Damage, and Yield of Transgenic B.t. Cotton in North Carolina

2001 ◽  
Vol 36 (4) ◽  
pp. 402-410 ◽  
Author(s):  
A. L. Agi ◽  
A. Burd ◽  
J. R. Bradley ◽  
J. W. Van Duyn
Keyword(s):  
North Carolina ◽  
Management Strategy ◽  
Helicoverpa Zea ◽  
Management Strategies ◽  
Crop Management ◽  
Planting Date ◽  
Effective Management ◽  
Lepidopterous Pest ◽  
Egg Deposition ◽  
Fruit Damage

The susceptibility of Bollgard® cotton and non-B.t. cotton to bollworm, Helicoverpa zea (Boddie), was examined under contrasting crop management strategies in northeastern North Carolina in 1995, 1996, and 1998. Specifically, planting date effects were observed in Edgecombe Co. in 1995 and 1996, in Martin Co. in 1996, and in Washington Co. in 1998. The bollworm was the only lepidopterous pest which occurred at damaging levels in these tests. Although no significant differences were detected in mean percent egg deposition, mean percent larval infestation, and mean percent damaged fruit between early-planted and late-planted plots in 1995 and 1996, yields were higher in early-planted cotton than in late-planted cotton. In 1998 mean percent damaged fruit was higher in early-planted cotton than in late-planted cotton, but early-planted cotton had significantly higher yields than late-planted cotton. Early planting may be an effective management strategy for Bollgard® cotton in northeastern North Carolina.

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