南繁基地稻水象甲传入的风险与防控

稻水象甲是侵入我国的一种重要检疫性水稻害虫,目前已经在我国大部分稻区扩散蔓延。海南岛尚没有稻水象甲发生为害的报道,但海南岛是稻水象甲的适生分布区,加上稻水象甲具有孤雌生殖的繁殖特点,从理论上说,只要有一只稻水象甲成虫被携带进入,就会繁殖一个种群世代,稻水象甲在南繁区传播蔓延的风险相当大。建议禁止水稻稻桩进入南繁区,并对来自疫区的水稻南繁材料加强植物检疫,把该虫拒于南繁基地之外。     

稻水象甲发生规律与防治

阐述了辽宁省盘山地区水田稻水象甲虫害来源、发生规律、害虫的形态特征、生活习性及危害情况，并进行了灭虫药剂筛选试验。结果表明，采用速克毙、凶象毙、稻乐丰和象甲净等4种农药50ml／667m^2用量。防治一般水田稻水象甲，效果可迭100％。应用生物农药杀确爽50-60ml／667m^2用量，防治养蟹稻田稻水象甲，防治效果在92．3％-94．3％。     

我国稻水象甲的发生及其研究进展

稻水象甲原分布于北美密西西比河流域．现已蔓延至环太平洋的美洲、亚洲和欧洲;我国自发生稻水象甲以来,已陆续扩散到60余个县（市）,发生面积超过40万hm^2,并有进一步向邻近地区扩散的趋势。本文就稻水象甲的生物学特性、不同稻作区的发生规律及防治方法进行了阐述,针对我国水稻稻水象甲的研究现状及研究方向提出了建设性意见。     

铁岭地区稻水象甲的发生及综合控制措施

近几年，铁岭地区稻水象甲的发生面积呈逐年扩大趋势，并表现出一定的发生分布规律及危害特点。根据稻水象甲传播途径多，适应性强，危害重，除治难等实际情况，结合本地条件，提出了检疫和防治相结合的综合控制措施。     

鞍山地区稻水象甲成虫发生规律及其防治

稻水象甲是水稻生产上一种重要害虫，是检疫对象。我们鞍山地区自１９９４年在岫岩县哨子河乡首次发现稻水象甲以来，目前已遍布三县一区，危害比较严重，给水稻生产造成很大损失。几年来我们在进行封锁防治的同时，还对稻水象甲的发生规律及防治进行了比较系统的研究，并取得了阶段性成果，现总结如下：１稻水象甲成虫的发生规律几年来，我们每年于１１月中旬（冬前），４月中旬（冬后），在哨子河、雅河、新甸、大营子等乡镇的水稻本田、田埂、沟渠、山坡、林带等地，用单对角线两点取样法，深度为１０cm，取３０点的土样在室内用温水漂洗…     

稻水象甲发生规律与安全控害措施

稻水象甲是一种对水稻生产危害较严重的虫害,对桓仁县优质稻米生产有很大影响。对稻水象甲的形态特征进行了描述,介绍了其趋光性、迁飞性、取食性、产卵习性等生物学特性,并通过建设水稻安全控害示范区来以点带面,探索出稻水象甲在桓仁县的发生规律,研究和示范了采用生物方法、物理方法、生态方法防治稻水象甲的安全控害措施。     

浙江省稻水象甲发生现状与防控

针对浙江省稻水象甲发生范围从小到大再缩小,危害程度从重到轻逐渐演变的过程,笔者采用“阻止虫源转化为核心的生态控制与药治越冬成虫为重点的综防相结合”的防控对策,有效控制了稻水象甲发生危害,并进一步提出了监测与防控稻水象甲为害的技术方案。     

稻水象甲在境外的发生与危害

稻水象甲在境外的发生与危害黄可辉（福州动植物检疫局）稻水象甲（Ｌｉｓｓｏｒ》ｏｐｔｒ。ｓｃｒｙ。ｏｐｈ；ｌ。ｓｋｖｓｃｈｅｌ）是稻作的重要危险性害虫，列为对外植物检疫对象。该虫原产美国，目前在境外相邻的一些国家和地区均有发生。为引起广泛关注，防止稻水...     

抚顺地区稻水象甲的发生与防治

稻水象甲自1997年传入抚顺地区后迅速扩散,现已在该地区49个乡镇约2.5万hm2水田中有不同程度的发生。目前,在稻水象甲的防治上采取以化学防治为主的综合防治措施。根据稻水象甲在抚顺地区的发生危害特点,确定了"带药移栽,重点防治越冬代成虫,减少幼虫危害,控制新一代成虫"的防治策略。     

稻水象甲发生规律及防治

阐述了辽宁省盘山地区水田稻水象甲虫害来源、发生规律、害虫的形态特征、生活习性及危害情况,并进行了灭虫药剂筛选试验。结果表明,采用速克毙、凶象毙、稻乐丰和象甲净等4种农药50ml/667m2用量,防治一般水田稻水象甲,效果可达100%。应用生物农药杀确爽50-60ml/667m2用量,防治养蟹稻田稻水象甲,防治效果在92.3%-94.3%。     

IoT-based smart crop-field monitoring of rice cultivation system for irrigation control and its effect on water footprint mitigation

Paddy and Water Environment - Rice is the staple food and one of Thailand's economic crops. However, rice cultivation consumes a large amount of water. Therefore, it is necessary to reconsider...     

Recycling deep percolated water in continuously flooding irrigated rice fields to mitigate water scarcity

Paddy and Water Environment - Rice is critical to maintaining nutritional demand and food security of many Asian and African nations. The high water demanding rice is traditionally cultivated with...     

The variation of rice cultivars in Cd toxicity and distribution of the seedlings and their root histochemical examination

Paddy and Water Environment - Rice cultivars showing low Cd transportation into the aboveground parts of a plant can be selected to reduce Cd contamination in grains. In this study, eight rice...     

When do rice terraces become rice terraces?

Paddy and Water Environment - Rice terraces located on sloped hills in mountainous areas are sometimes abandoned because of lack of labor and difficulties associated with cultivation. Recently,...     

Chlorantraniliprole application differentially affects adult emergence of Sympetrum dragonflies in rice paddy fields

Paddy and Water Environment - Rice paddy fields are important habitat for many dragonfly species. In Japan, populations of dragonflies inhabiting rice paddies, in particular Sympetrum (Odonata:...     

Optimizing rice paddies’ lower greenhouse gas emissions and higher yield with SRI management under varying water table levels

Paddy and Water Environment - The System of Rice Intensification (SRI) is known as a climate-smart agricultural practice that increases rice production by changing the management of plants, soil,...     

Enhancing field scale water productivity for several rice cultivars under limited water supply

Paddy and Water Environment - Rice production is one of the largest consumer of water in agriculture. In general, the irrigation water productivity (WPI) is low in paddy fields. In order to improve...     

Development of a bioacoustic sensor for the early detection of Red Palm Weevil (Rhynchophorus ferrugineus Olivier)

The Red Palm Weevil (Rhynchophorus ferrugineus Olivier) is one of the worst pests for palms, since it can completely destroy the plant. Its early detection is very difficult and when the action of the pest is discovered, normally it is too late for recovering the plant. Bioacoustic sensors provide a good alternative for early detection of this pest because larvae activity is audible while they excavate tunnels to feed. This work describes the different stages for the development of an original electronic device based on acoustic sensors for early detection of Red Palm Weevil larvae in the interior of palms. This device is based on characteristic frequencies possibly related to their feeding activity. The performed tests have demonstrated that is possible to detect two week old larvae activity studying the sound intensity around 2250 Hz in palms infested only with 5 individuals under controlled environmental conditions. The activity of other insects artificially situated in the interior of palms did not affect the response of the device, possibly because they produce different frequencies (in the range 5–7 kHz). Future work will be aimed at assessing the infestation levels.     

Rice seedling establishment as affected by cultivar,seed coating with calcium peroxide,sowing depth,and water level

Inconsistent seedling establishment is a constraint to the adoption of direct seeding of lowland rice (Oryza sativa L.) in the tropics. Rice cultivars with superior seedling establishment in flooded soil have been recently identified. The establishment of these tolerant cultivars was compared with a control cultivar with and without calcium peroxide-coated seed under various combinations of water level and sowing depth. Water level had little effect on seedling establishment when seed were sown on the soil surface, but establishment was reduced by raising the water level when seed were sown below the soil surface. Calcium peroxide-coated seed established better than the tolerant cultivars at 13- and 25-mm sowing depths, but their seedlings were shorter and less vigorous than those of tolerant cultivars. Tolerant cultivars and coated seed had longer mesocotyls than controls. Sowing tolerant cultivars beneath a flooded soil surface at less than 13 mm assists achievement of consistent seedling establishment in lowland rice production.     

2011年怀集县水稻稻曲病重发生的原因及防控对策

稻曲病是一种由子囊菌亚门麦角菌属稻麦角菌引起的水稻穗部病害,该病重发生在水稻孕穗至破口期多雨的年份。文章通过分析2011年怀集县水稻稻曲病重发生的原因,提出切实可行的防控措施。