Alternative Low-Input Agriculture Systems （ALIAS） center advocates organic and sustainable food production system through farm/field demonstration and piloting. The center undertakes activities, including research a...Alternative Low-Input Agriculture Systems （ALIAS） center advocates organic and sustainable food production system through farm/field demonstration and piloting. The center undertakes activities, including research and development, extension and training, technology dissemination, linkaging and promotional activities. The study established a campus-based demonstration technology showcasing ALIAS to facilitate easy technology diffusion. The objectives of this research were to promote： （1） bio-fertilizers and plant-based pesticides in managing insect pests and diseases of organic vegetables and fruit crops; （2） lotus-tilapia integration as a new modality of farming system in frequently flooded areas; （3） honeybee as pollinators to enhance productivity of organic vegetable and fruit crops; （4） Adlai as intercrop to organic vegetable and fruit crops in support to rice sufficiency; （5） native chicken-coffee integration. The results show that： （1） microbial inoculants and plant-based pesticides are effective in controlling diseases and insect pest, respectively; （2） lotus integration in tilapia production system have no negative effect on the tilapia yield; （3） honeybees as pollinators enhances fruit setting by 42%-68% in different crops; （4） Adlai is a viable intercrop for organic vegetable and fruit crops; （5） native chicken integration was found to be beneficial in terms of soil fertility, insect pest control, natural weeding practices and cultivation in the coffee plantation.展开更多
The use of botanical pesticides in pest management during storage against insects is often encouraged because synthetic insecticides produce multiple side-effects on human health and environment. Insecticidal activity...The use of botanical pesticides in pest management during storage against insects is often encouraged because synthetic insecticides produce multiple side-effects on human health and environment. Insecticidal activity of the hexane, dichloromethane, ethyl acetate and methanol extracts of bark ofAfrostyrax lepidophyllus was tested on Sitophilus zeama~：~, Tribolium castaneum and Rhy-opertha dominica. The mortality rate was measured variable. The results of analysis showed that the mortality rate has a very highly significant variation following extracts, doses, insects and time considered （P 〈 0.001）. Extracts with ethyl acetate and hexane of A. lepidophyllus are effective against S. zeamais at the highest doses （1 g/10 mL and 0.5 g/10 mL of solvent）. These effective extracts werc characterized by gas chromatography coupled with mass spectrometry. Molecules such as thiocyanic acid, ethyl ester： dimetbylditbiophosphinic acid and other were characterizated. These results may consolidate traditional use ofA. lepidophylh^s in pest management.展开更多
文摘Alternative Low-Input Agriculture Systems （ALIAS） center advocates organic and sustainable food production system through farm/field demonstration and piloting. The center undertakes activities, including research and development, extension and training, technology dissemination, linkaging and promotional activities. The study established a campus-based demonstration technology showcasing ALIAS to facilitate easy technology diffusion. The objectives of this research were to promote： （1） bio-fertilizers and plant-based pesticides in managing insect pests and diseases of organic vegetables and fruit crops; （2） lotus-tilapia integration as a new modality of farming system in frequently flooded areas; （3） honeybee as pollinators to enhance productivity of organic vegetable and fruit crops; （4） Adlai as intercrop to organic vegetable and fruit crops in support to rice sufficiency; （5） native chicken-coffee integration. The results show that： （1） microbial inoculants and plant-based pesticides are effective in controlling diseases and insect pest, respectively; （2） lotus integration in tilapia production system have no negative effect on the tilapia yield; （3） honeybees as pollinators enhances fruit setting by 42%-68% in different crops; （4） Adlai is a viable intercrop for organic vegetable and fruit crops; （5） native chicken integration was found to be beneficial in terms of soil fertility, insect pest control, natural weeding practices and cultivation in the coffee plantation.
文摘The use of botanical pesticides in pest management during storage against insects is often encouraged because synthetic insecticides produce multiple side-effects on human health and environment. Insecticidal activity of the hexane, dichloromethane, ethyl acetate and methanol extracts of bark ofAfrostyrax lepidophyllus was tested on Sitophilus zeama~：~, Tribolium castaneum and Rhy-opertha dominica. The mortality rate was measured variable. The results of analysis showed that the mortality rate has a very highly significant variation following extracts, doses, insects and time considered （P 〈 0.001）. Extracts with ethyl acetate and hexane of A. lepidophyllus are effective against S. zeamais at the highest doses （1 g/10 mL and 0.5 g/10 mL of solvent）. These effective extracts werc characterized by gas chromatography coupled with mass spectrometry. Molecules such as thiocyanic acid, ethyl ester： dimetbylditbiophosphinic acid and other were characterizated. These results may consolidate traditional use ofA. lepidophylh^s in pest management.
