scholarly journals Low-Dose Insecticide Combinations for Colorado Potato Beetle Control

Agriculture ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1181
Author(s):  
Renata Bažok ◽  
Jamie O’Keeffe ◽  
Ivana Jurada ◽  
Zrinka Drmić ◽  
Martina Kadoić Balaško ◽  
...  
Keyword(s):  
Environmental Impact ◽  
Pest Management ◽  
Colorado Potato Beetle ◽  
Low Dose ◽  
Treatment Method ◽  
Effective Control ◽  
High Efficacy ◽  
Effective Protection ◽  
Novel Treatment ◽  
Potato Beetle

Colorado potato beetle (CPB) is the most notorious and problematic insect defoliator pest of potato. It is well known for its ability to develop resistance to chemical insecticides, so novel treatment methods must be developed. A possible solution is the application of newer groups of insecticides (biotechnical and biological insecticides) which are more selective and to which resistance has not yet been recorded. This work investigated the use of ecologically acceptable insecticide treatments: azadirachtin, spinosad and spinetoram, and their combinations against CPB larvae in laboratory and field conditions. Reduced dosing and combinational treatments were used to determine if effective protection against CPB could be achieved while also improving economic results. Our results from laboratory trials showed that combinations of low-dose azadirachtin (25%) and low-dose spinetoram (5%) are suitable for use in CPB integrated pest management. The results of the field trial showed that the use of 50% reduced dosage of spinosad and spinetoram resulted in high efficacy (89–99%) and can be recommended as a treatment method that provides effective control of CPB, improved economic results, and a positive environmental impact. Based on the advantages that these treatments offer compared to chemical insecticides, further work is recommended to determine if these combinational treatments used in other dosages or in combinations with some other ecologically acceptable insecticides can provide satisfactory control of CPB.

scholarly journals Dispersal of Perillus bioculatus, a Stinkbug Predator of the Colorado Potato Beetle

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 829C-829
Author(s):  
Simon Lachance ◽  
Conrad Cloutier
Keyword(s):  
Colorado Potato Beetle ◽  
Leptinotarsa Decemlineata ◽  
Cost Effective ◽  
Physiological Age ◽  
Effective Control ◽  
Predator Density ◽  
Factors Influencing ◽  
Potato Beetle ◽  
Perillus Bioculatus ◽  
Significant Factors

Predators and parasitoids used for biological control must possess good dispersal potential in order to ensure spatially uniform and cost-effective control. The rate of dispersal of Perillus bioculatus (F.) (Hemiptera: Pentatomidae), a predator of the Colorado potato beetle (Leptinotarsa decemlineata), was measured following central release in 0.025-ha potato plots. Factors influencing predator dispersal were also studied under controlled conditions in plant growth chambers. Temperature, predator size as affected by instar, and physiological age with respect to the completion of feeding during the intermolt stage were found to be significant factors. Predator density was also evaluated because of the strong tendency for this species to aggregate, thereby influencing dispersal. Results can be used to develop predictive models for inundative releases of P. bioculatus.

The Red Queen in a potato field: integrated pest management versus chemical dependency in Colorado potato beetle control

2014 ◽  
Vol 71 (3) ◽  
pp. 343-356 ◽  
Author(s):  
Andrei Alyokhin ◽  
David Mota-Sanchez ◽  
Mitchell Baker ◽  
William E Snyder ◽  
Sandra Menasha ◽  
...  
Keyword(s):  
Integrated Pest Management ◽  
Pest Management ◽  
Colorado Potato Beetle ◽  
Chemical Dependency ◽  
Potato Field ◽  
Red Queen ◽  
Potato Beetle ◽  
The Red Queen

scholarly journals Susceptibility of Seven Tomato Varieties to Spodoptera littoralis (Lepidoptera: Noctuidae) and Colorado Potato Beetle (Coleoptera: Chrysomelidae) Leaf Infestation

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 570c-570
Author(s):  
George F. Antonious ◽  
Matthew E. Byers ◽  
John C. Snyder ◽  
Douglas L. Dahlman
Keyword(s):  
Lycopersicon Esculentum ◽  
Feeding Behavior ◽  
Pest Management ◽  
Colorado Potato Beetle ◽  
Leptinotarsa Decemlineata ◽  
Spodoptera Littoralis ◽  
Crop Varieties ◽  
Potato Beetle ◽  
Lepidoptera Noctuidae ◽  
Insect Attack

The development and deployment of crop varieties that resist or tolerate insect attack is one tactic of pest management that can eliminate one or more spray applications per season, a significant savings to the grower. Seven tomato, Lycopersicon esculentum Mill. cultivars (Marmand, Edkawy, VF-145, GS-27, Pakmore-B, Flordade, and UCX) were evaluated under greenhouse conditions for differences in mortality and feeding behavior (leaf-area ingested) of the 4th instar larvae of Spodoptera littoralis (Boisd) and the Colorado potato beetle, Leptinotarsa decemlineata (Say). The most resistant cultivars to S. littoralis during two summer seasons, 1990 and 1991, were Edkawy and UCX (37% mortality) and VF-145 (33% mortality). Mortality was least (20%) on the F1 hybrid GS-27, indicating that GS-27 was the most favorable cultivar for S. littoralis. L. decemlineata larvae reared on excised tomato leaflets of the same varieties indicated similar trends. Factors responsible for greater resistance of Edkawy and UCX to S. littoralis and L. decemlineata are under investigation.

scholarly journals Difficulties in Potato Pest Control: The Case of Pyrethroids on Colorado Potato Beetle

Agronomy ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1920
Author(s):  
Imola Molnar ◽  
Elena Rakosy-Tican
Keyword(s):  
Insecticide Resistance ◽  
Environmental Pollution ◽  
Pest Management ◽  
Pest Control ◽  
Colorado Potato Beetle ◽  
Management Strategy ◽  
Pesticide Treatment ◽  
Potato Beetle ◽  
The Status ◽  
High Degree

Colorado potato beetle (Leptinotarsa decemlineata, CPB) is considered one of the most persistent crop pests because it is highly adaptable and can rapidly develop insecticide resistance. Nowadays, this beetle is resistant to over 54 different insecticides. In the absence of competitive alternatives, the answer of farmers to the high degree of pest adaptability is to increase the number of pesticide treatments or apply chemicals with different modes of action. Such a strategy increases the risk of intoxication in non-target organisms and leads to environmental pollution, augmenting the carbon footprint. Furthermore, these strategies are also unsustainable and inefficient for pest management in the long-term. The time has thus come to reform existing agriculture practices, for which the implementation of an integrated pest management strategy would be a more feasible tool. Applying a sustainable pest management strategy is indispensable for a better understanding of the status and mechanisms of insecticide resistance. Effective pest management requires monitoring the resistance of pests and developing a well-programmed pesticide treatment to simultaneously reduce the insecticide selection pressure and environmental pollution. In this context, here we present a review on the difficulties of potato pest control using as a case study the resistance of CPB to pyrethroids.

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