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| Registros recuperados: 90 | |
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| MALDONADO JR,WALTER; BARBOSA,JOSÉ CARLOS; COSTA,MARÍLIA GREGOLIN; GONÇALVES,PAULO CÉSAR TIBURCIO; SANTOS,TIAGO ROBERTO DOS. |
| ABSTRACT Among the pests of citrus, one of the most important is the red and black flat mite Brevipalpus phoenicis (Geijskes), which transmits the Citrus leprosis virus C (CiLV-C).When a rational pest control plan is adopted, it is important to determine the correct timing for carrying out the control plan. Making this decision demands constant follow-up of the culture through periodic sampling where knowledge about the spatial distribution of the pest is a fundamental part to improve sampling and control decisions. The objective of this work was to study the spatial distribution pattern and build a sequential sampling plan for the pest. The data used were gathered from two blocks of Valencia sweet orange on a farm in São Paulo State, Brazil, by 40... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Red and black flat mite; Negative binomial; Poisson distribution; Decision making; Integrated pest management. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000400401 |
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| Hyde, Jeffrey; Martin, Marshall A.; Preckel, Paul V.; Buschman, Lawrent L.; Edwards, C. Richard; Sloderbeck, Phillip E.; Higgins, Randall A.. |
| While most Corn Belt farmers consider planting Bt corn to control European corn borer, southwestern Kansas farmers must also take into account an array of other insect pests, including corn rootworm, spider mites, and southwestern corn borer. This research uses a decision analysis framework to estimate the expected economic value of Bt corn in southwest Kansas. Mean per acre Bt values ranged from $12.49 to $34.60, well above the technology fee assumed to be $14 per unit, or $5.25 per acre at a seeding rate of 30,000 seeds per acre. The minimum value over all scenarios was $8.69 per acre. Using Monte Carlo simulation, it was shown that European and southwestern corn borer infestation probabilities, expected corn price, and expected pest-free yields are... |
| Tipo: Journal Article |
Palavras-chave: Bt corn; Decision analysis; European corn borer; Integrated pest management; Monte Carlo simulation; Southwestern corn borer; Crop Production/Industries. |
| Ano: 2003 |
URL: http://purl.umn.edu/30721 |
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| Moura,Alexandre Pinho de; Carvalho,Geraldo Andrade; Cosme,Luciano Veiga; Alves,Eduardo; Botton,Marcos; Silva,Patrícia Sobral. |
| This study aimed to evaluate the effects of (g a.i. L-1) abamectin (0.02), carbaryl (1.73), sulphur (4.8), fenitrothion (0.75), methidathion (0.4), and trichlorfon (1.5) on the survival of larvae and pupae, on the oviposition of adults and hatching of eggs from treated Chrysoperla externa third-instar larvae from two different populations (Bento Gonçalves and Vacaria, Rio Grande do Sul State, Brazil). Morphological changes caused by abamectin to eggs laid by C. externa from Vacaria population were evaluated by mean of ultrastructural analysis. The pesticides were applied on glass plates. Distilled water was used as control. For the evaluation of larvae mortality, a fully randomized experimental design in a 2 x 7 (two populations x seven treatments)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Green lacewings; Integrated pest management; Natural enemy; Scanning electronic microscopy; Side-effects. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262011000300016 |
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| Becker,Walter F; Mueller,Siegfried; Santos,Janaína P dos; Wamser,Anderson Fernando; Suzuki,Atsuo; Marcuzzo,Leandro Luiz. |
| An alert system for tomato late blight was validated in an Integrated Production System (IP) in the 2006-2007 and 2007-2008 season in Caçador, Santa Catarina State, Brazil. The late blight is a destructive disease and demands 25 or more fungicide sprayings per season in a Conventional Production (CP) System. For the CP area, the chemical control was according to the growers' production systems and consisted of weekly sprays soon after planting. For the IP area, the criterion for the first fungicide spray was according to Machardy (1972) and for subsequent ones according to Wallin (1962), when the disease severity values (DSV) reached eight points. There was a decrease on the fungicide application in the IP, not only in the number of fungicide sprays... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum lycopersicum; Lycopersicon esculentum; Phytophthora infestans; Integrated pest management; IPM. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362011000400013 |
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| Chanasirin Klinmanee; Orak Tongdej; Wattana Posiri. |
| Integrated pest management trials were conducted in order to test pest management practices in Phatthalung, Nakhon Si Thammarat and Songkhla provinces during 2011-2013 wet seasons. The data on population of insect pests, natural enemies, percent damage of diseases, percent damage of animal pests, weed species with wet weight, grain yield per rai, input costs, price of paddy and net benefit were collected comparing to the farmers’ practice trials. The results showed that the integrated pest management trials having more natural enemies than the farmers’ practice trials. The major pests were rice thrips, green leafhoppers, rice leaf-folder, zigzag planthopper, whitebacked planthopper, rice bug. Rice diseases found were blast and brown spot. The animal... |
| Tipo: PhysicalObject |
Palavras-chave: Integrated pest management; Major pests; Input cost; Net benefit; Rice; Rice production; Knowledge transfer; Rice irrigation; Southern; การจัดการศัตรูพืชแบบผสมผสาน; ศัตรูพืช; ต้นทุนการผลิต; ผลตอบแทนสุทธิ; ข้าว; ชลประทาน; การผลิตข้าว; ระดับเศรษฐกิจ; การถ่ายทอดองค์ความรู้; การลดต้นทุน; ภาคใต้. |
| Ano: 2014 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5669 |
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| Registros recuperados: 90 | |
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