Use of Imidacloprid- Treated Row Mixtures for Colorado Potato Beetle (Coleoptera: Chrysomelidae) Management

Dively, Galen P.; Follett, Peter A.; Linduska, James J.; Roderick, George K.

doi:10.1093/jee/91.2.376

Cited by 19 publications

(10 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Refuges could be created by leaving blocks of untreated plants adjacent to the treated fields, by leaving untreated strips within the larger fields (Whalon and Ferro 1998), or by using perimeter sprays or at-planting treatments with a block of untreated rows in the middle of the field (Dively et al 1998;Blom et al 2002). Colonization of potato crops by insect pests starts at field edges, and then progresses towards the field center (Voss and Ferro 1990;Weber and Ferro 1993;Boiteau et al 1994;DiFonzo et al 1996).…”

Section: Resistance Managementmentioning

confidence: 99%

Colorado Potato Beetle Resistance to Insecticides

et al. 2008

View full text Add to dashboard Cite

show abstract

Section: Resistance Managementmentioning

confidence: 99%

Colorado Potato Beetle Resistance to Insecticides

et al. 2008

View full text Add to dashboard Cite

show abstract

“…Linduska and Dively (1996), Dively and Linduska (1996) and Dively et al (1998) state some possibilities of the use of lower dosage, spatial applications and alternative planting of imidacloprid-treated seed tubers and B.t. transgenic potatoes to reduce the resistance development in CPB.…”

mentioning

confidence: 99%

Combinations of several insecticides used for integrated control of Colorado potato beetle (Leptinotarsa decemlineata, Say., Coleoptera: Chrysomelidae)

et al. 2006

View full text Add to dashboard Cite

The Colorado potato beetle (Leptinotarsa decemlineata Say.) (CPB) is the main potato pest in Croatia. The main problems in CPB control are related to a number of treatments and resistance development. In order to investigate the efficacy of combinations a reduced dose of spinosad (33% of the full doses) with the reduced doses (33% of full doses) of B.t.t., neem and pyrethrin against CPB larvae, 3-year field trials and one laboratory trial were conducted. Joint actions of the insecticides in combinations were analyzed. The CPB attack on experimental fields in all 3 years of investigation was high to moderate. In 2001 the maximum number of larvae on untreated plots was 11.7 larvae per plant, while in 2002 and 2003 it was lower, 5.5 and 6.1 larvae/ plant, respectively. The efficacy obtained with a full dose of B.t.t. reached 75% in the field, and 78% in the laboratory trial. The residual efficacy of a full dose of B.t.t. lasted 7-10 days. The application of both, full and reduced doses of B.t.t., did not result in a significant yield increase. The results indicate that only one treatment with B.t.t. insecticide alone is not enough for efficient protection of potato against the attack of CPB larvae. The application of neem resulted in an efficacy of between 54 and 87.9%. The residual activity of neem was too short to ensure significant yield increase in 2 out of 3 years of the investigation. The application of a full dose of pyrethrin ensured an efficacy of between 86 and 89% with residual activity of 7-10 days. Only in the trial in 2003 significant yield increase (40% higher than untreated control) after the application of a full dose of pyrethin was recorded. The application of both, full and reduced doses of spinosad resulted in very high efficacy (over 90%), with residual activity between 10 and 20 days. The application of spinosad resulted in a significant yield increase in 2003, both in full and reduced doses, and in 2001 in the full dose (the reduced dose was not tested alone in 2001). High efficacy of the reduced dose of spinosad indicated its high biological activity and possibility for the reduction of the recommended dose. However, applications of combinations of insecticides in reduced doses (spinosad with B.t.t., neem and pyrethrin) resulted in efficacies of over 97% with residual activity of up to 21 days. Significant yield increase was noted after the application of the combinations of spinosad with B.t.t. and pyrethrin. The results of the laboratory trial confirmed the results of field trials. The joint action of insecticides was mainly described as independent synergism. It can be concluded that applied combinations are suitable in IPM in potato.

show abstract

“…Just after leaves were placed in the Petri dishes, CPB larvae were collected from untreated nursery potato plots ("Superior" cv) in the field and five sameinstar larvae were placed in each Petri dish with the leaves and placed in the laboratory (2 nd and 3 rd instar larvae were tested May through early Jun, 3 rd and 4 th instar larvae were tested mid-to late Jun, and adults were tested early Jul because no larvae were available). After 72 hr, the total percentage leaf-feeding, based on visual assessment of percentage leaf tissue consumed by the CPB, and the number of live CPB in each Petri dish was recorded (3,8,21,28 Jun and 5 Jul).…”

Section: Methodsmentioning

confidence: 99%

“…Currently throughout the potato-producing regions of the United States, the neonicotinoid class of insecticides, which includes dinotefuran, imidacloprid and thiamethoxam, is widely used for control of several insect pests of white potatoes [8,9], including early to mid-season infestations of both CPB and PLH. These insecticides are toxic to both of these pests [10], have excellent systemic uptake and translocation in plants, are used at low application rates, and present reduced environmental hazards [11,12].…”

Section: Introductionmentioning

confidence: 99%