6 articles in this issue
G. Silva, A. Lagunes, J. Rodríguez
Thirteen plants were ground to powder and evaluated under laboratory conditions singly and in combination with calcium carbonate against the maize weevil, Sitophilus zeamais. Twenty couples of seven days old of S. zeamais were placed in a container with 2... see more
G. MONTENEGRO, R. PIZARRO, G. AVILA, R. CASTRO, C. RIOS, O. MUÑOZ, F. BAS, M. GOMEZ
Pollen grains present in the honeys, produced during the season 2001-2002, in hives of the IV Regionof Chile, were identified by microscopic analysis in order to determine their botanical origin. The frequencyof pollen grains allowed us to determine the r... see more
G. APABLAZA, J. APABLAZA, P. REYES, E. MOYA
Viral diseases and insect vectors from weeds -growing adjacent to fields of tomato, pepper, melon, watermelon and squash - were determined in theVth and Metropolitan regions of Chile. Two hundred and eleven weed samples showing virussymptoms were analyzed... see more
C. Bonomelli, C. Henríquez, L. Giral, P. Bescansa
Phosphate is an essential element for plant nutrition, and therefore it is important to know the dynamics of sources of phosphorus (P) with different solubility in soils that naturally have low levels of available P and that fixate or adsorb the aggregate... see more
C. Alzugaray, S.R. Feldman, J.P. Lewis
Spartina argentinensis Parodi has a vicarious amphitropic distribution. In Argentina there are large areas of land covered with grasslands of this species. Fires are very frequent in these grasslands and they are a very common management technique for cat... see more
U. DOLL, H. VOGEL, P. JELDRES, M. MUÑOZ
Matico (Buddleja globosa Hope) is a native shrub of Chile, whose leaves are widely used inpopular medicine due to its excellent wound- and gastric ulcer healing effects. At present it is collectedfrom the wild, resulting in an over-explotation of the natu... see more