Potato Pest Control

Potato Pest Control

During the past several years, many new insecticides have been labeled for use on white potatoes that have been useful tools in a potato pest management program.

These materials have new chemistries, different modes of action, and are extremely active against the various insect pests of white potatoes. However, these insecticides must be used wisely to ensure maximum benefit of the application as well as to reduce the potential of insecticide resistance to these materials by the targeted insect pest.

Controlling Wireworms

Mocap (ethoprop, Bayer CropScience) is still the only material labeled as a preplant insecticide for wireworms (broadcase just before planting). Brigade and Capture (bifenthrin, FMC Corp.), Mocap, Regent (fipronil, BASF), and Thimet (phorate, Amvac Chemical Corp.) are labeled for planting applications. Only bifrenthrin, however, is labeled for application after planting (lay-by or foliar applications).

Wireworms are one of the most difficult insect pests to control, and results of wireworm efficacy trials over the past several years have been inconsistent. However, all of the labeled materials have shown that they can be effective against wireworms. In addition, Admire (imidacloprid, Bayer CropScience) and Platinum (thiamethoxam, Syngenta Crop Protection) applied to the soil at planting time for other pests, such as potato beetles and leafhoppers, have also provided control of wireworms even though not specifically labeled for this pest.

Managing Foliar Damage

Several important potato insect pests cause damage after the plants emerge. The most important of these pests are Colorado potato beetles and potato leafhoppers, and the less important pests include potato flea beetles and aphids (green peach and potato aphids).

Both seed-piece treatments and at-plant applications are very effective and economical application methods for control of these pests. Cruiser (thiamethoxam, Syngenta Crop Protection) and Gaucho (imidacloprid, Bayer CropScience) are both labeled as seed treatments, and Admire, Platinum, and Venom (dinotefuran, Valent U.S.A. Corp.) are labeled as at-plant applications. In recent research trials conducted in New Jersey in 2008, both Admire and Platinum were equally effective in controlling Colorado potato beetle as well as potato leafhopper.

Of important news is that currently many insecticides of different classes are labeled for foliar applications, which means growers can select materials having different modes of action for use in a rotational scheme for pesticide resistance management. If an at-plant insecticide is not used, a wide selection of foliar materials is available which, when used properly, will allow effective management of the potato beetle without increasing resistance problems.

Added to this are several newly registered insecticides for white potatoes, including Coragen (chlorantraniliprole, DuPont Crop Protection), Brigadier (bifenthrin and imidacloprid, FMC Corp.), Endigo (thiamethoxam and lambda-cyhalothrin, Syngenta Crop Protection), Radiant SC (spinetoram, Dow AgroSciences), Leverage (imidacloprid and cyfluthrin, Bayer CropScience), and Voliam Flexi (chlorantraniliprole and thiamethoxam, Syngenta Crop Protection). Many of these insecticides, such as Coragen, Endigo, Warrior II (lambda cyhalothrin, Syngenta Crop Protection), and Voliam Flexi, also will control European corn borer.

In addition to those insect controls, others have been added for growers to use. Those products include Voliam Xpress (chlorantraniliprole, Syngenta Crop Protection), and Belay (clothianidin, Valent USA), now labeled as a seed-piece application, foliar, or chemigation for several pests, including flea beetle, potato beetle, aphids, and leafhoppers.

The present and future look promising for potato growers as well as growers of other vegetables, with new chemistry insecticides having novel modes of
action that have low, non-target toxicities as well as low or negligible impact on the environment. Many combinations of insecticides are rapidly becoming labeled, combining multiple mode-of-actions as well as increasing the range of pests being controlled. These exciting new products are already available to growers, and will be excellent tools for their pest management and insecticide resistance management programs.

Leave a Reply

One comment on “Potato Pest Control

Disease Control Stories
Late blight shown in a tomato
Disease ControlLate Blight Identified In Indiana, Michigan
July 28, 2015
A potato field in Michigan and a potato and tomato field in Indiana have documented the disease. Read More
downy mildew symptoms on basil
Disease ControlRed Lights Slow Down Growth Of Downy Mildew On Basil
July 22, 2015
University of Florida scientists say the technology may help growers manage the disease and reduce chemical inputs. Read More
Bacterial wilt of curcurbits
CucurbitsWin The War Against Bacterial Wilt Of Cucurbits
July 22, 2015
Learn how to identify, the survival and spread, as well as management methods of this vegetable disease. Read More
Disease ControlStone Fruit Rots Rampant In East
July 21, 2015
The incidents of fruit rots in both sweet and tart cherries and peaches and nectarines are quite high in Pennsylvania Read More
UF/IFAS scientists Edward Evans and Jonathan Crane study diseased avocados in a South Florida grove.
Disease ControlDeadly Disease Cutting Down Florida Avocado Trees Likely To Push Up Prices
July 17, 2015
The economic impacts of laurel wilt disease management costly for domestic producers. Read More
tomato plants showing signs of Fusarium wilt
Disease ControlGrowers, Scientists Setting Sights On Soilborne Disease
July 14, 2015
Further removed from methyl bromide, nasty maladies like Fusarium are finding a way back into fields. Read More
Crop ProtectionEarly Blight And Septoria Leaf Spot Rampant On Pennsylvania Tomatoes
July 8, 2015
According to a news release from Penn State University, early blight and Septoria leaf spot are present in Pennsylvania tomato Read More
The Latest
Crop ProtectionLettuce Disease Gives E. Coli A Boost
July 31, 2015
E. coli prefer cut, injured, and young lettuce leaves. Read More
Crop ProtectionNew Fungicide Targets Key Diseases
July 30, 2015
This disease control tool hits two different parts of the fungal life cycle. Read More
Disease ControlNew Disease Control Tools For Fruit And Nut Growers
July 29, 2015
Apple scab is a big problem for growers in the Midwest and East. But, a new fungicide boasts efficacy against Read More
Late blight shown in a tomato
Disease ControlLate Blight Identified In Indiana, Michigan
July 28, 2015
A potato field in Michigan and a potato and tomato field in Indiana have documented the disease. Read More
downy mildew symptoms on basil
Disease ControlRed Lights Slow Down Growth Of Downy Mildew On Basil
July 22, 2015
University of Florida scientists say the technology may help growers manage the disease and reduce chemical inputs. Read More
Bacterial wilt of curcurbits
CucurbitsWin The War Against Bacterial Wilt Of Cucurbits
July 22, 2015
Learn how to identify, the survival and spread, as well as management methods of this vegetable disease. Read More
Disease ControlStone Fruit Rots Rampant In East
July 21, 2015
The incidents of fruit rots in both sweet and tart cherries and peaches and nectarines are quite high in Pennsylvania Read More
UF/IFAS scientists Edward Evans and Jonathan Crane study diseased avocados in a South Florida grove.
Disease ControlDeadly Disease Cutting Down Florida Avocado Trees Likel…
July 17, 2015
The economic impacts of laurel wilt disease management costly for domestic producers. Read More
tomato plants showing signs of Fusarium wilt
Disease ControlGrowers, Scientists Setting Sights On Soilborne Disease
July 14, 2015
Further removed from methyl bromide, nasty maladies like Fusarium are finding a way back into fields. Read More
Crop ProtectionEarly Blight And Septoria Leaf Spot Rampant On Pennsylv…
July 8, 2015
According to a news release from Penn State University, early blight and Septoria leaf spot are present in Pennsylvania tomato Read More
Crop ProtectionDowny Mildew Reported In Ohio Cucumber Fields
July 8, 2015
According to a disease update from Ohio State University Extension, downy mildew was reported in cucumbers on farms in West Read More
BerriesRainy Weather Causing High Risk For Phytopthora In Berr…
June 29, 2015
With the rainy weather the Midwest has recently received, the conditions for Phytophthora diseases increases. An increased risk for oomycetes, Read More
Disease ControlQuintec Fungicide Receives Label For Bacterial Spot Sup…
June 26, 2015
Quintec fungicide from Dow AgroSciences, known as an effective treatment for suppressing bacterial spot in peppers, is now available to Read More
Crop ProtectionDowny Mildew Makes Early Appearance In Michigan Cucumbe…
June 23, 2015
An alert sent by Michigan State University (MSU) Extension confirms the presence of downy mildew on cucumber leaves in Michigan. Read More
Apples & PearsDon’t Neglect Overwintering Fire Blight Cankers
June 22, 2015
Canker blight has been seen in Pennsylvania orchards, thanks to ideal weather conditions as of late. Kari Peter of Penn Read More
Disease ControlFMC’s RHYME Fungicide Labeled In California And Arizona
June 18, 2015
RHYME fungicide is now labeled for use in California and Arizona  for control of powdery mildew and black rot in Read More
BerriesCaptan Gold 4L Fungicide Now Registered In California
June 16, 2015
ADAMA has received EPA approval for Captan Gold 4L liquid fungicide for use on strawberries, tree fruits, and other specialty Read More
Disease ControlYeasts Found On Plum Surfaces May Protect Against Patho…
June 16, 2015
Some naturally occurring yeasts may be useful for protecting stone fruits against pathogens that attack after harvest. Scientists at the Read More