High spatial resolution fluorescence imagery for optimized pest management within a Huanglongbing-infected citrus grove

Huanglongbing (HLB), or citrus greening disease, has significantly decreased citrus production all over the world. The disease management currently depends on the efficient application and adequate distribution of insecticides to reduce the density of the disease vector, the Asian citrus psyllid. Here, we use a novel fluorescent-based method to evaluate insecticide distribution in an HLB-infected citrus grove in Florida. Specifically, we evaluated six different locations within citrus trees, the top and bottom sides of leaves, the effect of application approach (tractor vs airplane), and different application rates. We found that despite the insecticide distribution being highly variable among the different locations within a tree, the top of the leaves received an average increase of 21 times more than the bottom of the leaves. Application by tractor also resulted in a 4- to 87-fold increase in insecticide coverage compared to aerial application, depending on the location in the tree and side of leaf. When taken into context regarding the type of insecticide that is applied (systemic vs contact), these results can be used to optimize a pest management strategy to effectively target psyllids and other pests while minimizing the time and money spent on insecticide application and reducing risk to the environment.

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Study on farmers’ Pest management strategy, knowledge on pesticide safety and practice of pesticide use at Bhaktapur district, Nepal

Cogent Food & Agriculture ◽

10.1080/23311932.2021.1916168 ◽

2021 ◽

Vol 7 (1) ◽

pp. 1916168

Author(s):

Susan Thapa ◽

Gaetano Piras ◽

Sudesh Thapa ◽

Arjun Goswami ◽

Prabas Bhandari ◽

...

Keyword(s):

Pest Management ◽

Management Strategy ◽

Pesticide Use ◽

Pesticide Safety

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Demonstrating an integrated pest management strategy in forage- and seed-brassica crops using a collaborative approach

New Zealand Plant Protection ◽

10.30843/nzpp.2018.71.118 ◽

2018 ◽

Vol 71 ◽

pp. 112-120 ◽

Cited By ~ 3

Author(s):

Abie Horrocks ◽

Paul A. Horne ◽

Melanie M. Davidson

Keyword(s):

Biological Control ◽

Integrated Pest Management ◽

Pest Management ◽

Management Strategy ◽

Management Practices ◽

Collaborative Approach ◽

Biological Control Agents ◽

Brassica Crops ◽

Starting Point ◽

Management Approaches

An integrated pest management (IPM) strategy was compared with farmers’ conventional pest management practices on twelve spring- and autumn-sown seed and forage brassica crops. Demonstration trials were conducted in Canterbury from spring 2015 to autumn 2017 by splitting farmers’ paddocks in half and applying the two management approaches side by side. A farmer participatory approach was used, with management decisions based on monitoring pests and biological-control agents. Farmer and adviser training with a focus on monitoring and identification was carried out. Biological-control agents capable of contributing to pest control were identified in all brassica crops. There was a 35% reduction in the number of insecticides applied under IPM compared with conventional management, negligible crop yield differences, and the type of insecticides applied was different. IPM adoption at these farms was high by the end of the 3-year project with 11 of the 12 farmers implementing IPM across 90—100% of their brassica crops. This project was a starting point for an industry-wide change of practice to IPM, which has become more widespread since its completion.

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A volatile compound 2undecanone increases walking but not flying tomato potato psyllid movement toward an odour source

New Zealand Plant Protection ◽

10.30843/nzpp.2014.67.5750 ◽

2014 ◽

Vol 67 ◽

pp. 184-190 ◽

Cited By ~ 1

Author(s):

M.M. Davidson ◽

R.C. Butler ◽

N.M. Taylor ◽

M-C. Nielsen ◽

C.E. Sansom ◽

...

Keyword(s):

New Zealand ◽

North America ◽

Integrated Pest Management ◽

Pest Management ◽

Volatile Compound ◽

Management Strategy ◽

Potato Psyllid ◽

Bactericera Cockerelli ◽

Odour Source ◽

Important Pest

Bactericera cockerelli (tomato potato psyllid; TPP) is an important pest of solanaceous crops in New Zealand and North America A volatile compound that alters the behaviour of TPP could be developed into a component of an integrated pest management strategy for solanaceous crops One compound 2undecanone was found to increase the percentages of female and male TPP (65 P

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Repelling whitefly (Bemisia tabaci) using limonene-scented kaolin: A novel pest management strategy

Crop Protection ◽

10.1016/j.cropro.2022.105905 ◽

2022 ◽

pp. 105905

Author(s):

Nicholas Johnston ◽

Thomson Paris ◽

Matthews Paret ◽

Josh Freeman ◽

Xavier Martini

Keyword(s):

Pest Management ◽

Bemisia Tabaci ◽

Management Strategy

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Efficacy of Flupyradifurone, Pyriproxyfen and Horticultural Oil, and Dinotefuran Against Gloomy Scale (Melanaspis tenebricosa Comstock)

Arboriculture & Urban Forestry ◽

10.48044/jauf.2021.006 ◽

2021 ◽

Vol 47 (2) ◽

pp. 64-71

Author(s):

Kevin Chase ◽

Elden LeBrun ◽

Chad Rigsby

Keyword(s):

Health Care ◽

Pest Management ◽

Field Trial ◽

Management Strategy ◽

Woody Plant ◽

Acer Rubrum ◽

Plant Health ◽

Red Maple ◽

Eastern Usa ◽

Major Pest

Gloomy scale (GS)(Melanaspis tenebricosa) is a major pest of red maple (Acer rubrum) across much of the eastern USA. Current pesticide recommendations for GS management are efficacious when applications are made at the appropriate time. However, appropriate timing may not always be possible. For instance, the tree owner may not contact pest management professionals in time to make timely applications. We established a field trial to determine the efficacy of the pesticides pyriproxyfen plus horticultural oil and dinotefuran, as well as a relatively new pesticide available in the ornamental woody plant market, flupyradifurone, against GS. There were three primary goals of this study: (1) to quantitatively compare the effectiveness of pyriproxyfen plus horticultural oil and dinotefuran; (2) to compare flupyradifurone with these two generally recommended treatments; and (3) to assess whether flupyradifurone is effective when applications are made later in the summer. We found that pyriproxyfen plus horticultural oil, dinotefuran, and flupyradifurone applications made during the active crawler period were equally efficacious, statistically, and that flupyradifurone treatments applied later in the summer were not statistically differentiable from untreated controls. While these pesticide applications are effective at suppressing GS populations, plant health care tactics aimed at preventing outbreaks should be prioritized and incorporated into the complete pest management strategy.

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Assessment of Insecticidal Properties of Products From Seeds of Carica papaya Against Callosobruchus Maculatus (Fabricius)

Journal of Agricultural Studies ◽

10.5296/jas.v6i3.13645 ◽

2018 ◽

Vol 5 (4) ◽

pp. 142

Author(s):

Joy Ejemen Idoko ◽

Bukola Mary Atere ◽

Raphael Abiodun Adebayo

Keyword(s):

Pest Management ◽

Carica Papaya ◽

Callosobruchus Maculatus ◽

Adult Emergence ◽

Adult Mortality ◽

Post Treatment ◽

Application Rates ◽

Cowpea Seeds ◽

Randomized Design ◽

Papaya Seed

Powder and ash of Carica papaya seed extracted from riped and unriped C. papaya fruits obtained from Teaching and Research Farm of the Federal University of Technology, Akure were evaluated for their insecticidal potential against Callosobruchus maculatus (Fabricius) at application rates of 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0g per 20g of cowpea seeds. The experiment was carried out at the pest management laboratory of the Department of Crop, Soil and Pest Management under ambient laboratory conditions of 27±20C temperature and 70±5% relative humidity. Each treatment was infested with 5 pairs of C. maculatus. The experiment was laid out in Completely Randomized Design with each treatment replicated three times. Mortality of cowpea beetles were assessed at 24, 48 and 72hours post treatment. Thereafter data were collected on oviposition, adult emergence, weevil perforation index and seed germination. The results obtained indicated that adult mortality of C. maculatus increased with increasing application rates of powders and ashes of ripe and unripe C. papaya seeds. 100% mortality was observed on cowpea seeds treated with powders and ashes of unripe C. papaya seed at 0.8 and 1.0g application rates at 72hours post treatment. Powders and ashes of unripe C. papaya seed significantly reduced the oviposition potential of adult C. maculatus and caused significant reduction of damaged seeds. Highest number of seeds that germinated was recorded on the seeds treated with powders and ashes of unripe C. papaya seed at 0.8 and 1.0g application rates.

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A linuron-free weed management strategy for carrots

Weed Technology ◽

10.1017/wet.2018.112 ◽

2019 ◽

Vol 33 (03) ◽

pp. 464-474

Author(s):

Tessa de Boer ◽

Peter Smith ◽

Kevin Chandler ◽

Robert Nurse ◽

Kristen Obeid ◽

...

Keyword(s):

Effective Dose ◽

Pest Management ◽

Weed Management ◽

Management Strategy ◽

Seedling Emergence ◽

Growing Season ◽

Field Trials ◽

Organic Soils ◽

Biologically Effective Dose ◽

And Control

AbstractThe development of a linuron-free weed management strategy for carrot production is essential as a result of the herbicide reevaluation programs launched by the Pest Management Regulatory Agency in Canada for herbicides registered before 1995 and the discovery of linuron-resistant pigweed species in Ontario. Field trials were conducted in one of Ontario’s main carrot-growing regions on high organic soils in 2016 and 2017. Pigweed species seedlings were effectively controlled with PRE treatments of prometryn, pendimethalin, S-metolachlor, or glufosinate. POST treatments of pyroxasulfone and metribuzin followed by predetermined biologically effective dose (≥90% control of pigweed seedlings) of acifluorfen, oxyfluorfen, fluthiacet-methyl, and fomesafen achieved excellent crop selectivity and commercially acceptable pigweed species seedling control under field conditions. Carfentrazone-ethyl or fomesafen applied PRE severely reduced seedling emergence and yield in the wet growing season of 2017. This study demonstrated clearly that an alternative linuron-free strategy can be developed for carrots. The strategy of exploring the potential to use the biologically effective dose of selected herbicides to achieve crop selectivity and control of pigweed species seedlings was verified.

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