Перейти в український iнтерфейс (версiю) / Change to Ukrainian interface versionПерейти в англiйський iнтерфейс (версiю) / Change to English interface versionПерейти в росiйський iнтерфейс (версiю) / Change to Russian interface versionПочаткова сторiнка / Home pageОчистити останнi запитуванi результати / Clear last query resultsДовiдкова сторiнка / Help page
Пошук спецiальних термiнiв / Search for specific termsПерегляд по тематичним категорiям / Browse by subject categoryПерегляд списку заголовкiв по алфавiту / Browse alphabetical list of titlesПерегляд по органiзацiям / Browse by organizationПерегляд спецiального тематичного видання / Browse special topic issues

Закрити книгу / close this bookAbstracts on Sustainable Agriculture (GTZ; 1992; 423 pages)
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts On Traditional Land-Use Systems
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on farming systems research and development
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on integrated systems
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on cropping system
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on agroecology
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on agrometeorology
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on agroforestry
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on homegardens
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on seed production
Закрити папку / close this folderAbstracts on plant protection
Перегляд документу / View the documentAcknowledgements
Перегляд документу / View the document1. Designing integrated pest management for sustainable and productive futures.
Перегляд документу / View the document2. Biotechnology's bitter harvest: herbicide-tolerant crops and the threat to sustainable agriculture.
Перегляд документу / View the document3. Chemistry, agriculture and the environment.
Перегляд документу / View the document4. Mise au point de techniques appropriées de lir qui seront utilisés par les petits agriculteurs traditionnels d'Afrique tropicale.(developing appropriate ipm technology for the traditional small-scale farmer in tropical Africa).
Перегляд документу / View the document5. Biological control in developing countries: towards its wider application in sustainable pest management.
Перегляд документу / View the document6. Transforming plants as a means of crop protection against insects.
Перегляд документу / View the document7. Utilization of va-mycorrhiza as a factor in integrated plant protection.
Перегляд документу / View the document8. Activity of four plant leaf extracts against three fungal pathogens of rice.
Перегляд документу / View the document9. A useful approach to the biocontrol of cassava pathogens.
Перегляд документу / View the document10. Evaluation of the biological activity of flax as a trap crop against orobanche parasitism of vicia faba.
Перегляд документу / View the document11. Insect pest management.
Перегляд документу / View the document12. Economic contributions of pest management to agricultural development.
Перегляд документу / View the document13. The effects of intercropping and mixed varieties of predators and parasitoids of cassava whiteflies (hemiptera: aleyrodidae) in Colombia.
Перегляд документу / View the document14. Prospects for traditional and cultural practices in integrated pest management of some root crop diseases in rivers state, Nigeria.
Перегляд документу / View the document15. Studies on cowpea farming practices in nigeria, with emphasis on insect pest control.
Перегляд документу / View the document16. Effect of various fertilizers and rates on insect pest/pearl millet relationship in Senegal.
Перегляд документу / View the document17. Insect pests of intercrops and their potential to infest oil palm in an oil-palm-based agroforestry system in India.
Перегляд документу / View the document18. Using weather data to forecast insect pest outbreaks.
Перегляд документу / View the document19. Insect pest management and socio-economic circumstances of small-scale farmers for food crop production in western Kenya: a case study.
Перегляд документу / View the document20. Rodent communities associated with three traditional agroecosystems in the San Luis potosi plateau, Mexico.
Перегляд документу / View the document21. Grain storage losses in Zimbabwe.
Перегляд документу / View the document22. Controlling weeds without chemicals.
Перегляд документу / View the document23. Weed management in agroecosystems: ecological approaches.
Перегляд документу / View the document24. Manual on the prevention of post-harvest grain losses.
Перегляд документу / View the document25. Evaluation of efficient weed management systems in pigeonpea (cajanus cajan l.)
Перегляд документу / View the document26. Weed management in a low-input cropping system in the Peruvian Amazon region.
Перегляд документу / View the document27. Poblaciones, biomasa y banco de semillas de arvenses en cultivos de maiz zea mays l. Y frijol phaseolus vulgaris l. Efecto de m+todos de control y rotaciones. (Weed population, biomass, and seed bank in maize and bean crops. Effects of control methods and crop rotations).
Перегляд документу / View the document28. Effects of groundnut, cowpea and melon on weed control and yields of intercropped cassava and maize.
Перегляд документу / View the document29. Intercropping and weeding: effects on some natural enemies of African bollworm, heliothis armigera (hbn.) (lep., Noctuidae), in bean fields.
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on water management
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on soil fertility
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on erosion and desertification control
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on potential crops for marginal lands
 

18. Using weather data to forecast insect pest outbreaks.

In: Proceed. of the Int. Workshop on the Impact of Weather Parameters on Growth and Yield of Rice, IRRI, Philippines, 1987, pp. 139-146

In this paper it is examined how weather influences the bionomics of migrant pests and the application of this examination to forecasting outbreaks is discussed. The situation for rice pests is considered, particularly the application of weather data to forecasting outbreaks of brown planthopper.

The development of forecasting systems to manage outbreaks of migrant pests is becoming increasingly important. Such systems normally are based on integrating meteorological and entomological data into a conceptual model that relates the probability of occurrence of outbreaks to a particular series of events which can be monitored. The advantages of this approach to forecasting are both tactical and strategical: those concerned with pest control can plan ahead to ensure that appropriate resources and the means to deploy them effectively are available where and when they will be needed. A strategic advantage of major importance is the potential for limiting the spread of outbreaks through timely control of early infestations, reducing the production of further migrants.

The author states that there is great potential for using weather data to forecast outbreaks of insect pests, particularly because other ability to access and process information from remote-sensing systems is increasing rapidly.

It appears that weather parameters are a critical factor in outbreak development, and thus a good predictor, only in situations where they represent a population-limiting factor. This is seen most frequently with temperature in the temperate zone and rainfall in the tropics.

In many situations, weather may play a very important part in determining the precise epidemiology of an outbreak, although it is not in itself a determinant of the outbreak. Rice leafhoppers and planthoppers and the virus diseases they transmit are an example.

The study of weather systems against the background of the ecology, behavior, and physiology of the insect pest and the distribution of the host plant can lead to improved predictions of dispersal patterns. This type of information can be of value in developing appropriate management strategies. The development of computer-based migration and population models for particular insects will be important in exploiting that forecasting potential.

1212 92 - 10/139

Plant protection

Africa, Kenya, insect pest management, survey, sorghum, maize, cowpea, crop borer, intercropping, agronomical practices, plant resistance, biological control farmer, socio-economic conditions

SAXENA, K.N. et al.

Попередня секцiя / to previous section Наступна секцiя / to next section

[Українська]  [англiйська]  [росiйська]