English (en) | Change Language

Sort: Relevance | Newest first | Oldest first


23 items found (Showing 1 - 10)
  1. 1991-12-19 The following are abstracted from an article in the magazine Baobab, #5, 1990. They in turn learned it from "The Farming World" of BBC World Service. First a review. You have read in previous issues of EDN and probably elsewhere about this tree's use in insect control. There are many active...  
  2. 1994-10-19 ECHO was contacted with a vivid description of problems of leaf-cutter ants in Guyana. The farmers even tried building water filled moats around plants but the ants built leaf bridges and crossed right over. Jack bean and Sesame may help control leaf-cutter ants.  
  3. 1995-03-19 A technique to control Colorado Potato Beetles. The Colorado potato beetle has become resistant to many pesticides. An innovative technique developed by AgCanada and researched by Cornell is the use of “trench traps” to catch the beetles as they walk out of fields in search of new food sources or...  
  4. 1995-10-19 Chickpea leaves and pods exude extremely acidic (pH 2) droplets which repel most pests from attacking the plant. But recently the pod borer, which eats the contents of the pods, has become tolerant to the acid and has devastated crops in Asia.  
  5. 1996-01-19 Information about controlling cassava mealybug (Phenacoccus manihoti) without commercial insecticides.  
  6. 1996-10-19 Grasshoppers and locusts cause extensive damage to a wide variety of crops and can be persistent in gardens year after year. Several ideas for their control are presented.  
  7. 1998-02-19 Kerosene Emulsifiable Concentrate is an insecticide (at times it acts as a fungicide) which has a very wide spectrum as far as dealing with various insects is concerned.  
  8. 1999-03-19 Horn flies have been controlled with insecticides in the U.S. since the early 1950s. An alternative, mechanical means of control (horn fly trap) was developed prior to World War II, but this never made its way into mainstream agriculture because of the growing use of pesticides following the war....  
  9. 1999-07-19 The diamondback caterpillar,Plutella xylostella, (larva of amoth) is a very serious pest of cabbage and other crops. When highly fertilized collard greens (B. oleracea, Acephala Group), a related vegetable, are planted completely around a field, moths lay their eggs on the collards rather than on...  
  10. 1999-12-19 In a study done by the University of Georgia, scientists showed that plants send out very specific signals for parasitic wasps to come to their aid when under attack by herbivores.