Dimasudkan crop rotations to reduce nematode population density in soil that is infested. Crop rota

Radhopolus similis are widespread in the tropics and sub-tropics, an important pathogen of banana in the banana growing regions. This nematode worm-shaped, length 0.65 mm and width of 25μm. These nematodes live and reproduce in the cavity of the root cortex. all larvae and adults can infect roots (Sugiharto, 1983).
When heat treated carefully, the nematodes were dead bodies will be straight or slightly curved on the ventral part. Artifacts for signs of sexual dimorphism in the anterior (Luc et al., 1995).
Females: Framework and head hardened obvious. Both sexes active, elongated body. To the two sexes is low, wide and rounded or flat anterior part, (except on Radopholus), width is approximately half to three-fifths of the length of the stylet. Stylet stocky plumeria with a large basal knob. Three esophageal glands overlap intestine plumeria lobe. has one or two ovaries. plumeria The length of females or two times wider than the anus. The length of the male nematode average of 0.58 mm and degenerated, esophagus and styletnya not fully developed.
Head of male nematodes rounded and notched very different from females. Having a single testis and exchange extends to two-thirds of the tail (Dropkin, 1992). 18-22 lm long spicules slindris shaped and curved. Krucut shaped elongated tail and curved toward the ventral and wrapping exchange between the 2-3 or more. Males: The length of the male nematode average 0.58 mm and degenerated, esophagus and styletnya not fully developed. Head of male nematodes rounded and notched very different from females. Having a single testis and exchange extends to two-thirds of the tail (Dropkin, 1992). 18-22 lm long spicules slindris shaped and curved. Krucut shaped elongated tail and curved toward the ventral and wrapping exchange between the 2-3 or more (Shurtleff and Averre III, 2000).
According Dropkin (1991) infection caused by Radopholus sp can cause the stems of banana plumeria plants easy to collapse, it can also be caused by Pratylenchus sp. and Helicotylenchus sp. the high infection (Luc et al. 1995). R. similis or pit root nematodes known as migratory endoparasites on various types of plants. This nematode damage or eat the root cortex, plumeria causing holes in the roots. All stadia can be found in the roots and in the soil. Males are nonparasites, plumeria while the other stadia are parasitic on plants (Mustika, 2003).
In addition to soil temperature, the life of the nematode phylum is also influenced by the presence of water either in the soil or in the plants. Phylum water contribute to the mobility of nematodes, determine whether inactive and nematodes, and even affect mortality (Williams and Bridge, 1983). Porosity, moisture, and aeration of the soil also play a role in the survival of nematodes (Sastrahidayat, 1992). In general, the nematodes were in the 15-30 cm soil layer, but can grow well if the soil has a lot of pores and have enough air.
Dimasudkan crop rotations to reduce nematode population density in soil that is infested. Crop rotation is done by planting species of plants that not including the host of the pathogen. Planting with non-host plants are expected to be cut or at least disrupt plumeria the life cycle of the nematode. The increase in nematode population in the soil are influenced by the same host plant cultivation continuously (Munif, 2003).
Planting plumeria trap crops on land that is already infested nematodes will be very useful for reducing the density of population. This control method plumeria has been successfully used to reduce the population of the potato cyst nematode.
Solarization by using dark and light plastic is an attempt to increase the soil temperature at a certain level so that it can suppress nematode populations and soil pathogens. Emphasis mechanisms can be directly with the killing of pathogens or nematodes propagules due to the increase in temperature due to the temperature increase due to the ground with a plastic closure within a specified period, or indirectly by various microorganisms antagonist active in soil for the solarization process (Munif, 2003).
Flooding of infested soil for several months can reduce nematode plumeria populations. Flooding has been shown to significantly populasiMeloidogyne at planting. This method has also been used to reduce nematode Radopholus similis attack that attack banana plants in Central and South America plumeria (Munif, 2003).
Various types of organic matter such as compost, manure from chicken manure and other organic matter has been reported to mengura