MONITORING AND FORECASTING ATTACKS OF CABBAGE ROOT FLY AND CARROT FLY IN VEGETABLE CROPS

1988 ◽  
pp. 39-46 ◽  
Author(s):  
S. Finch ◽  
R. H. Collier
1977 ◽  
Vol 67 (3) ◽  
pp. 383-389 ◽  
Author(s):  
Mary Behan ◽  
M. F. Ryan

AbstractThe ovipositor of Psila rosae (F.) comprises abdominal segments seven, eight and nine, the latter with well-defined tergite, sternite and anal cerci. Approximately 110 trichoid sensilla are located on the ovipositor. The ovipositor of Delia brassicae (Wied.), comprising abdominal segments six, seven, eight and nine, has a well-defined sternite on segment eight, with a tergite, sternite and cerci on segment nine. Approximately 245 trichoid sensilla are located on the ovipositor, in addition to 20 styloconic-type and four basiconic-type sensilla. These extra sensilla may enhance chemical discrimination, and thus host-finding, by D. brassicae. Transmission electron microscopy was used to reconstruct a trichoid sensillum, probably a mechanoreceptor, on the cerci of D. brassicae.


2019 ◽  
Vol 2 (3) ◽  
pp. 141-151
Author(s):  
O. E. Gnezdova ◽  
E. S. Chugunkova

Introduction: greenhouses need microclimate control systems to grow agricultural crops. The method of carbon dioxide injection, which is currently used by agricultural companies, causes particular problems. Co-generation power plants may boost the greenhouse efficiency, as they are capable of producing electric energy, heat and cold, as well as carbon dioxide designated for greenhouse plants.Methods: the co-authors provide their estimates of the future gas/electricity rates growth in the short term; they have made a breakdown of the costs of greenhouse products, and they have also compiled the diagrams describing electricity consumption in case of traditional and non-traditional patterns of power supply; they also provide a power distribution pattern typical for greenhouse businesses, as well as the structure and the principle of operation of a co-generation unit used by a greenhouse facility.Results and discussion: the co-authors highlight the strengths of co-generation units used by greenhouse facilities. They have also identified the biological features of carbon dioxide generation and consumption, and they have listed the consequences of using carbon dioxide to enrich vegetable crops.Conclusion: the co-authors have formulated the expediency of using co-generation power plants as part of power generation facilities that serve greenhouses.


EDIS ◽  
2019 ◽  
Vol 2019 (6) ◽  
pp. 5
Author(s):  
Hai Liu ◽  
Guodong Liu

Asian vegetable crops are rapidly expanding in Florida in the last decade due to their health benefits combined with their high profitability. These crops can help increase vegetable growers’ income and diversify Florida’s crop production, and they are new to most Floridians. This new 5-page article provides a general overview of bok choy for vegetable growers, crop consultants, certified crop advisors, Extension agents, and graduate students. Written by Hai Liu and Guodong Liu and published by the UF/IFAS Horticultural Sciences Department.https://edis.ifas.ufl.edu/hs1337


2019 ◽  
Vol 326 (3) ◽  
pp. 76-78
Author(s):  
V.L. Nalobova ◽  
◽  
N.S. Opimah ◽  
M.V. Nalobova ◽  
I.V. Haponenka ◽  
...  

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