Production and environmental outputs of intensive pasture‐based dairy systems must be rebalanced to reduce overall environmental footprint. This analysis documents the tactical management changes that enabled Lincoln University Dairy Farm (LUDF) to transition from high nitrogen (N) inputs (345 kg N fertiliser/ha/year) to a lower N input strategy (167 ...
David F. Chapman
wiley +1 more source
Effectiveness of botanical preparations for the control of rice weevil (Sitophilus oryzae) during rice seed storage and their impact on the rice seed viability : a thesis presented in partial fulfilment of the requirements for the degree of Master of Applied Science in Seed Technology at Massey University, Palmerston North, New Zealand [PDF]
Food security and the maintenance of seed quality from harvest to planting are key issues for peasant farmers. In Sierra Leone, up to 28% of rice seed can be damaged by rice weevil in the six months storage period.
Sartie, Alieu Mortuwah
core
Entomopathogenic nematodes provide reliable biological control of vine weevil larvae, reducing populations by 63% on average. All five tested species are effective, with temperature (18–30 °C) being the strongest predictor of success. Abstract BACKGROUND Vine weevil (Otiorhynchus sulcatus) is a globally important pest of soft fruit and ornamental crops
Joe M. Roberts +5 more
wiley +1 more source
Studies on the effectiveness of various insecticides and drying in controlling granary weevil (Sitophilus granarius L.) in stored wheat seed : a thesis presented in partial fulfilment of the requirement for the degree of Master in Agricultural Science (Seed Technology) at Massey University, New Zealand [PDF]
This study was designed to examine the effects of various insecticidal materials and of repeated seed drying during storage on the population dynamics and survival of Granary Wevil (Sitophilus granarious L.) in wheat.
Islam, Md. Nurul
core
Seasonal Occurrence of Pine Root Collar Weevil, \u3ci\u3eHylobius Radicis\u3c/i\u3e (Coleoptera: Curculionidae), in Red Pine Stands Undergoing Decline [PDF]
A trapping scheme was devised for sampling the pine root collar weevil, Hylobius radicis, in mature red pine plantations in Wisconsin. Adult weevils were trapped throughout the 1986 field season, and the method appears sensitive enough to discern ...
Hall, David J, Raffa, Kenneth F
core +2 more sources
SCB has a robust RNAi response to injected dsRNA, but oral RNAi is less efficient. Nucleases do not appear to be responsible for the discrepancy, suggesting other factors are involved. Abstract BACKGROUND The striped cucumber beetle (SCB) is a serious pest of cucurbit crops, causing damage both by feeding on plants and by vectoring plant diseases ...
Emine Kaplanoglu +2 more
wiley +1 more source
New data on Caucasian weevils from the subgenus Pliadonus Reitter, 1912 of the genus Otiorhynchus Germar, 1822 (Coleoptera: Curculionidae) closely related to O. dispar Stierlin, 1879 [PDF]
New data on the morphology, biology and distribution of weevils (Сurculionidae) of the genus Otiorhynchus Germar, 1822, the subgenus Pliadonus Reitter, 1912 are presented, namely for O. dispar Stierlin, 1879, O. impressiceps Reitter, 1888, O.
G.E. Davidian, Yu.G. Arzanov
doaj +1 more source
Dust to weevils, weevils to dust: maize weevil personality and susceptibility to diatomaceous earth
The role of behavior in insecticide susceptibility is broadly recognized, in addition to the physiological effects of insecticides. Curiously, the recognition of the importance of behavior does not extend to the control by physical agents, like inert dusts such as diatomaceous earth (DE).
H. A. E. Malia +3 more
openaire +2 more sources
Opinion on pesticide resistance and management in the European Union (EU) and United Kingdom (UK) is presented cognisant of changes in regulation that impact on mode of action availability and cropping system choice. Abstract In recent times, pesticide resistance has been managed reasonably effectively, either proactively or reactively, by monitoring ...
Julian Smith +10 more
wiley +1 more source
ABSTRACT The coevolutionary radiation of 27 species of Tetraopes longhorned beetles and their Asclepias milkweed hosts represents a classic example of adaptive evolution driven by plant chemical defences and herbivore counteradaptations. Investigations to date, however, have focused on a single species, Tetraopes tetrophthalmus, which feeds on the ...
Sangil Kim, Brian D. Farrell
wiley +1 more source

