Rice black bugs what are the benefit for researcher and farmer?4 answersResearchers benefit from identifying entomopathogenic fungi like Paecilomyces sp. and Fusarium sp. that attack rice black bugs, aiding in pest management. Understanding the systematic relationships of Philippine rice black bugs helps researchers classify species effectively. Sampling techniques like fluorescent-street-light traps and Petromax gas-lantern traps assist in studying the population dynamics of Malayan black bugs in rice fields, aiding researchers in data collection and analysis. Farmers benefit from research findings that suggest alternative pest management strategies like the ecological rice-animal co-culture system, which can increase rice yields, reduce nitrogen losses, and lower input costs, ultimately enhancing their net income and promoting sustainable intensification. By bridging knowledge gaps and providing practical solutions, research contributes to more effective pest control and improved agricultural practices for farmers.
What insects affect stored rice?5 answersStored rice is susceptible to infestation by various insect pests, impacting both quantity and quality. Common pests include Sitophilus oryzae, Rhyzopertha dominica, Lasioderma serricorne, Oryzaephilus surinamensis, Tribolium castaneum, and Cryptolestes ferrugineus. Among these, S. oryzae is a key pest, with parasitoids like Anisopteromalus calandrae and Lariophagus distinguendus showing potential for biological control. The infestation levels can vary based on storage conditions, with factors like storage materials influencing pest populations and damage levels. Additionally, fortifying rice with substances like spearmint or basil can help reduce infestation and population growth of these insect species, showcasing promise for stored product insect control. Understanding the diversity and abundance of these pests is crucial for effective Integrated Pest Management strategies in rice storage facilities.
What is the importance of assessing rice field frogs as a potential source of zoonotic parasites in human consumption?5 answersAssessing rice field frogs as a potential source of zoonotic parasites in human consumption is important because these frogs can be infected with blood parasites that can affect human health. The presence of blood parasites in rice field frogs, such as Trypanosoma and Hepatozoon species, can lead to pathological lesions in the liver, spleen, and other organs. Additionally, rice field frogs can serve as intermediate hosts for parasites like Opisthorchis viverrini, which can cause significant public health problems in Southeast Asia. Understanding the transmission dynamics of these parasites in rice field frogs is crucial for implementing effective control measures and preventing human infections. Furthermore, rice field frogs can also act as indicators of environmental contamination, as their health and reproductive parameters can be affected by agrochemical usage in rice cultivation. Therefore, assessing rice field frogs for zoonotic parasites is essential for protecting human health and preserving the integrity of rice agroecosystems.
Are rice weevils scared of turmeric?3 answersRice weevils (Sitophilus oryzae) are not scared of turmeric. However, turmeric has been found to have a positive effect on the infestation of Meloidogyne javanica on turmeric plants. In a study conducted in Nigeria, the application of rice husk ash (RHA) to the soil significantly reduced the number of galled roots caused by the nematode infestation on turmeric plants. Additionally, other studies have shown that turmeric is not effective in controlling the severity of sheath blight fungus on rice caused by Rhizoctonia solani. Therefore, while turmeric may have beneficial effects on certain pests and diseases in plants, it does not have a deterrent effect on rice weevils.
What is a rice bug?5 answersA rice bug is a type of insect pest that affects rice crops during the reproductive stage. It is known to cause significant damage to rice plants by sucking the plant sap directly and indirectly transmitting viruses. Rice bugs have been the focus of research and control methods due to their destructive nature and economic impact. Different species of rice bugs, such as Leptocorisa acuta and Leptocorisa chinensis, have been studied in terms of their distribution, hosts, natural enemies, and control strategies. The efficacy of various plant products and synthetic insecticides has been tested to manage rice bug infestations. The spread and invasion history of rice bugs, such as Lissorhoptrus oryzophilus, have been investigated, along with the development of comprehensive control strategies.
How to characterize rice bug?2 answersRice bugs can be characterized using different methods. One approach is to use computer vision-based systems that utilize local descriptors such as local binary pattern, histogram of oriented gradients, and GIST to analyze rice seed images. Another method involves using a compound represented by formula (I) as a bug repellent. Additionally, the identity, distribution, hosts/species affected, and natural enemies of rice bugs can be studied to further characterize them. It is also possible to detect and classify rice plant diseases, including those caused by bugs, using image-based machine learning approaches. This involves capturing images of diseased symptoms in rice plants and using deep convolutional neural networks as feature extractors and support vector machines as classifiers.