Mealybug (family Coccidae, order Homoptera) is one of the pests on the plant teak. These ticks suck the host's body fluids (Napitu et al. 2012). Mealybugs are polifag, almost all types of plants potentially affected by the NII mealybug. The level of damage caused by the attack Pseudococcus sp. ranging from moderate to high attack. Risks to high attack, which can lead to failure of cultivation. Mealybug pest has more than 100 host plant genus of 62 families of plants. The spread of mealybug is very easy through seedlings vegetative propagation of plants (Kalshoven 1981). This is in accordance with the conditions of teak seedlings in the nursery as a result of propagation by cuttings bud.
Based on the observations, insects, mealybugs found together with black ants. According to William (2004), the mealybug insect symbiosis with ants. Symbiotic mutualism between ants and mealybugs that ants protect mealybugs from their natural enemies attack, and of the bad weather, as well as assist in the transmission or distribution of this mealybug. The results of the symbiosis, the ants get honey dew produced by these mites as a food source of these ants.
Pests white lice can spread easily by wind, carried by the seeds, carried by humans, or carried by other animals. This is possible because the small size of the ticks. Mealybugs suck the leaves and remove toxins and result in chlorosis, stunting, leaf malformations, and produce honey dew exudate up can cause death in plants (Directorate of Horticulture, 2010). Observation of teak seedlings in the nursery shows the number of seeds on the leaf malformations. In addition, the leaves of the teak are also found honey dew in Figure 17b. This is in accordance with the Director General of Horticulture (2010).
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