| 单词 | 为害 |
| 释义 | 为害 The damage of Chlorops oryzae Matsumura displayed clustering pattern of distribution in late rice fields. Occurring and damage of tomato leaf mould were more serious here. Inoculation experiment showed that the pathogen infected mainly the leaves, secondly the petioles and the stipules, but not the stems and the pods. Elderly people with official connivance, can seek personal gain. or even harm the township. The country has pretty much defeated the boll weevil, and the Department of Agriculture individually tests every bale on obscure measures such as the tensile strength of the fibres. That was until Alex Dragulescu gave these insidious human creations visual expression. The control of agricultural pests need to offer a key technology and technique system adapted to environment and ecology according to the harmful pests' habits. The former infectsG. badense only, but the latter infects both G. hirsutum and G. badense. It injure the fruit trees, vegetables, cotton, maize, sorghum etc, especially common jujube. Through observing discovering to Aleurocanthus spiniferusQuaintence inside and outside the room, It mainly feed on Pyracantha leaves and lead to soot and disease when serious occurrence. In order to control its spread and the harmfulness, the damage regularity and control measures were studied combining practice closely, and then primary effects were obtained. Why the need for fear the human life judgment day. Temperature is the main factor affecting its occurrence. Winter- warm shed becomes the main place surviving in winter and early spring, continuous damages and main pest source in the open. Aphid is one of the important pests which feeding on oat. In recent years, occur and damage of aphid have aggravated with the change of climate. Leaf hoppers dislike shade, and the hottest part of the day is when they do the worst of their damage. Bombyx mori nuclear polyhedrosis virus disease has the most extensive distribution and is the most serious disease in the occurred diseases. Behaviors of parasitoids, as part of important basic information for regulating and utilizing parasitoids to control insect pests, have been studied for more than70 years. Bagging of Fuji apple cultivation to be effective in reducing disease, insects, birds and other damage to the fruit to reduce fruit surface pollution, pollution-free fruit production an important way. We can break the balance of nature by increasing the category and quantity of pests' natural enemy so as to limit their growth and thus prevent the harm. The time and quantity of rats invading mushroom house to do harm, are greatly affected by climate. First, scale insects of outdoor ornamental plants in Hebei province have been investigated and analyzed statistically. The damage symptoms and the morphological characteristics of the adult and larvae of two shoots of moths are described. The resistance index system was composed of scoring scale of chlorosis on a leaf of maize and the ACL ca. |
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