Особенности статуса борщевика сосновского в Украине и характеристика ликвидации опасного вида сорняка в Черновицкой области

The pest risk analysis (PRA) was carried out for Sosnowsky’s hogweed to determine the ability of the species to be a quarantine object by analyzing the available scientific data. According to the results of the PRA, Sosnowsky’s hogweed can be classified as a regulated weed and socially dangerous to human and animal health, highly aggressive in spread, and extremely difficult to eradicate in many areas, where it is widespread in small numbers. It allows to apply measures to it as for any quarantine plant: to control its appearance and completely eradicate it’s entry source. The results of developed method have been proposed using the example of town Chernivtsi. Weed density have decreased from 47,8 and 43,5 plants to 4,8 and 1,2 plants on 1 m2 in a number of hotbeds. These measures allowed to decrease the quantity of Sosnovsky’s hogweed in some hotbeds by more than 25 times.

Clover yellow mosaic virus.

Clover yellow mosaic virus is not recommended for regulation as a quarantine pest by EPPO and is not included in the EPPO Alert List. A comprehensive pest risk analysis was performed by the UK Food and Environment Agency (FERA): https://secure.fera.defra.gov.uk/phiw/riskRegister/downloadExternalPra.cfm?id=3804.

Echinochloa pyramidalis.

E. pyramidalis, a perennial grass, has decidedly invasive characteristics with its vigorous shoot and rhizome growth and abundant seed production. As an aquatic, it also has the potential to be very damaging to sensitive aquatic habitats. Holm et al. (1979) record it as a major weed in its native area in Nigeria, Swaziland, Sudan and Madagascar. In Guyana, after being introduced and cultivated for some years, it was noticed as a weed in sugar cane in 1982 and increased rapidly to become one of the most troublesome weeds in the aquatic system of the Guyana Sugar Corporation (Bishundial et al., 1997). In Mexico, again after introduction as a fodder grass, it has become widely invasive in wetlands, tending to reduce native wetland species (López Rosas et al., 2010). Apart from its competitive growth, Wells et al. (1986) note its tendency to obstruct water flow. For the USA it is highly ranked as a potential invasive weed of the future (Parker et al., 2007) and it has been identified as a species 'not authorized (for introduction) pending pest risk analysis' (NAPPRA) (USDA-APHIS, 2012).

Clover yellow mosaic virus.

Clover yellow mosaic virus is not recommended for regulation as a quarantine pest by EPPO and is not included in the EPPO Alert List. A comprehensive pest risk analysis was performed by the UK Food and Environment Agency (FERA): https://secure.fera.defra.gov.uk/phiw/riskRegister/downloadExternalPra.cfm?id=3804.

Pest Risk Analysis and Management Practices for Increasing Profitability of Lemon Production

The study aimed at assessing the pest risk and management practices of lemon production and its profitability in Tangail district of Bangladesh. Household survey was conducted by an interview schedule from 120 lemon growers who were selected as sample respondents following a proportionate random sampling technique. Lemon butterfly and dieback disease were identified as important problems in lemon cultivation. Lemon butterfly was found with the highest infestation in Elachi lemon (70.0%) and Kagozi lemon (57.0%). Dieback disease was found with the highest infestation rate of 49.3% in Elachi lemon, 38.0% in Kagozi lemon, and 33.3% in Sakara-2 variety. Almost 82.5 percent of the respondents had medium to high adoption of pest management practices. The adoption of pest management practices was positively related to the profitability of lemon cultivation. However, there is further scope to make pest management practices sustainable by enhancing the adoption of biological, cultural, and mechanical approaches.

Pratylenchidae: Achlysiella, Hirschmanniella, Nacobbus, Pratylenchus, Radopholus and Zygotylenchus species.

This chapter provides information on geographical distribution; host plants; symptoms; biology and life cycle; economic importance; movement and means of dispersal; pest risk analysis; invasiveness rating; management measures, including cultural, host resistance, biological, and chemical control; and detailed account of diagnosis procedures, such as morphological, biochemical, and molecular characterization, of Achlysiella, Hirschmanniella, Nacobbus, Pratylenchus, Radopholus and Zygotylenchus species.

Hoplolaimidae: Aphasmatylenchus, Helicotylenchus, Hoplolaimus and Scutellonema species.

This chapter provides information on geographical distribution; host plants; symptoms; biology and life cycle; economic importance; movement and means of dispersal; pest risk analysis; invasiveness rating; management measures; and detailed account of diagnosis procedures, such as morphological, biochemical, and molecular characterization, of Aphasmatylenchus, Helicotylenchus, Hoplolaimus and Scutellonema species.

Belonolaimidae: Belonolaimus species.

The sting nematode, Belonolaimus spp., is one of the most destructive nematode pests of turfgrass and attacks a wide range of monocotyledonous plants and gymnosperms, including vegetables, legumes, cereals, etc. This chapter includes information on: geographical distribution; host ranges; symptoms; biology and life cycle; ecology; physiological races; economic importance; invasiveness; pest risk analysis; movement and means of dispersal; management measures; and detailed account of diagnosis procedures, such as morphological, biochemical, cytogenetic and molecular characterization, of Belonolaimus species.