Results 191 to 200 of about 183,454 (241)

Metarhizium anisopliae as a potential biocontrol agent to suppress the tomato leafminer Phthorimaea absoluta in China

Pest Management Science
Phthorimaea absoluta, an invasive pest, has recently become a devastating threat to China's tomato cultivation industry. Chemical insecticides have historically constituted the primary control strategy against this pest, but their intensive application ...
Yanfei Ren, Faxi Wu, Asim Munawar, Guoxiu Li, Xing Liu, Xiaolong Liu, Ning Ding, Zhigang Ju, K. Akutse, Wenwu Zhou, Yaqiang Zheng   +10 more
semanticscholar   +1 more source

Leafminer Control on Tomato, 1975

Insecticide and Acaricide Tests, 1976
Abstract The experimental planting consisted of a 12 row x 225 ft section of direct seed, trellised, fresh market tomatoes ‘Hybrid 6718’ under drip irrigation and grown commercially in Chula Vista, California. Treatments were applied in a 4 x 4 Latin square design using a tractor-mounted, high-clearance sprayer with 8 hollow-cone nozzles
openaire   +1 more source

Outbreak of the South American tomato leafminer, Tuta absoluta, in the Chinese mainland: geographic and potential host range expansion.

Pest Management Science, 2021
BACKGROUND In 2017 Tuta absoluta was identified as an invasive species in China. Due to its rapid geographic expansion and the severe crop damage it causes, T. absoluta poses a serious threat to China's tomato production industry.
Gui-Fen Zhang, Xiaoqing Xian, Yi-Bo Zhang, Wan-xue Liu, Hui Liu, Xiaoyuan Feng, D. Ma, Yu-Sheng Wang, You-hua Gao, Rong Zhang, Qing-Hong Li, F. Wan, Wenjun Fu, Jun Wang, Meng Kuang, Wenjia Yang, Xinxian Rao, Ying Gao, Ai-Mei Dai   +18 more
semanticscholar   +1 more source

Tomato Pinworm and Leafminer Control on Tomato Seedlings, 1976

Insecticide and Acaricide Tests, 1977
Abstract Five-day old seedlings were set January 3, 1976 into Speedling styrofoam trays (128 3.8 cm square inverted pyramid holes/tray), filled with a 1:1 peat moss and vermiculite (50% coarse and 50% fine) media mix. Individual trays were considered plots and arranged in four replications in a randomized complete block design in a ...
openaire   +1 more source

Semifield inoculative releases of the parasitoid Pseudapanteles dignus (Hymenoptera: Braconidae) for biological control of the South American tomato leafminer Phthorimaea absoluta (Lepidoptera: Gelechiidae).

Journal of Economic Entomology
Semifield trials were conducted to evaluate the efficiency of inoculative releases of the larval endoparasitoid Pseudapanteles dignus (Muesebeck), to control the South American tomato pinworm Phthorimaea (=Tuta) absoluta (Meyrick).
Nadia G. Salas Gervassio, Julieta Peñalba, G. Minardi, M. G. Luna   +3 more
semanticscholar   +1 more source

Comparative Efficacy of Trichogramma (Hymenoptera: Trichogrammatidae) Species and Strains for Biological Control of the Tomato Leafminer Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae): Laboratory-to-Field Assessments

Horticulturae
Tuta absoluta (Meyrick), a new invasive pest in China, is a major threat to global tomato production. Trichogramma egg parasitoids are an effective approach to controlling this pest.
Gui-Fen Zhang, ChenXiao Zhao, Yi-Bo Zhang, D. Ma, Ping Li, Yongwang Guo, Wan-Cai Liu, Yu-Sheng Wang, Cong Huang, Xiaoqing Xian, Fanghao Wan   +10 more
semanticscholar   +1 more source

Lepidopterous Larvae and Vegetable Leafminer Control on Tomatoes, 1979

Insecticide and Acaricide Tests, 1981
Abstract An experimental tomato planting (VFN Bush) was directly seeded on Jul 1. Insecticide treatments were replicated 4 times in a completely random design. The replicates were 4 rows wide (6-ft centers) by 25 ft long with a 5-ft buffer between replicates.
R. A. Van Steenwyk, J. T. Hayashi
openaire   +1 more source

Vegetable Leafminer Control on Tomato, 1977

Insecticide and Acaricide Tests, 1978
Abstract Beginning about 10 days before first harvest, insecticidal treatments were applied weekly to ‘Walter’ tomato plants in a commercial field in Hillsborough County, Florida. Plants were approximately 25% defoliated by ihe vegetable leafminer at first spray. Treatments were applied to runoff with a hand-held, 7.6-liter sprayer at 13.
openaire   +1 more source

Vegetable Leafminer Control on Tomato, 1977-78

Insecticide and Acaricide Tests, 1979
Abstract Two experiments were conducted on Manatee County, FL, commercial fields of ‘Walter’ tomato beginning about 3 wk before the first harvest. Plots were seep irrigated and grown .6 (Expt. 1) or .8 m (Expt. 2) apart on black polyethylene plastic mulched sand beds (0.8 m wide by 0.2 m high) 1.8 m apart.
openaire   +1 more source

Tomatoes: Control of Fruitworms, Defoliators, and Leafminers, 1977

Insecticide and Acaricide Tests, 1979
Abstract Tomatoes were transplanted Apr 25‘77. Plots were 1-row (6-ft spacing), 25-ft long and replicated 4x in randomized complete blocks. Soil was a loamy sand. Beginning at blossoming, plots were sprayed by hand with a 1-nozzle sprayer, 30 psi, 50 gal/acre for the 1st 3 applications and 100 gal/acre for the last 3.
openaire   +1 more source