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What are the causes of newborn rabbit deaths? How to effectively prevent and control them
Causes of newborn rabbit deaths and countermeasures
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Supplementary zinc fertilization in rice paddies can effectively prevent "sitting stumps"
After rice seedlings are transplanted, they may be slow to grow, fail to turn green, or fail to tiller and even shrink after turning green, which farmers generally call "sitting stumps." Fields with "sitting stumps" mostly occur in low-lying, damp areas and in cold, waterlogged, or poor fields, but they sometimes also occur in fertile fields. There are many causes of this phenomenon, and zinc deficiency is one very important cause. The symptoms of zinc deficiency "sitting stumps" in rice are: the leaf tips of the basal leaves of the rice plant dry up, and yellow-brown to reddish-brown irregular patches appear in the middle section of the leaves; and these gradually spread from the old leaves
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How can mosquitoes and flies in a pigpen be effectively driven away?
What drugs and methods can the experts suggest to drive away mosquitoes and flies in a pigpen? Answer: Comrade Li Xiang: To drive away mosquitoes and flies. At night, mosquito coils can be lit in the pigpen, or crystalline trichlorfon wrapped in gauze can be hung up to prevent mosquito bites. You can also regularly give the pigs an appropriate amount of livestock oxytetracycline, and every day do a good job of rinsing the feeding utensils and cleaning the pigpen to avoid the spread of pathogens.
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How to Effectively Prevent and Control Cherry Blossom Brown Spot Shot Hole Disease
I. Symptoms: Shot hole disease can be divided into fungal and bacterial types. Cherry blossom brown spot shot hole disease is caused by fungi. It mainly damages leaves and also infects new shoots. It usually starts from the lower part of the canopy and gradually spreads upward. In the early stage of the disease, needle-tip-sized purplish-brown small spots are scattered on the upper side of the leaves, later expanding into round or nearly round lesions 3-5 mm in diameter. The edges of the brown spots are purplish-brown, and grayish-brown mold spots appear on the lesions in the later stage. An abscission layer forms at the edge of the spot, and the lesion dries up and falls off, forming shot holes. II. Disease Pattern: The pathogen of cherry blossom brown spot shot hole disease overwinters in diseased leaves or shoot parts
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Salt-brining of mushrooms can effectively increase product added value.
When fresh mushrooms sell poorly, or the price is low, and they need to be preserved for a long time before sale, salt-brining is the simplest and most effective method. Mushroom salt-brining requires no large fixed capital investment, generally about 200 yuan is enough, and the processing technique is relatively easy to master. 1. Materials: washing vat, color-protecting vat, blanching pot, cooling water vat, salting vat and other containers, plus auxiliary materials such as salt and citric acid. 2. Fresh mushroom preparation: the standard is timely harvesting, removing debris and cutting stems, and sorting by grade. 3. Washing and color protection: fresh mushrooms can be directly soaked and washed in 0.6% salt water.
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How can cut-flower carnations be effectively protected against gray mold?
Symptoms: Elliptical, brown, large and wet spots first appear on the petals, then gray mold grows on them, and the petals and the whole flower rot as a result; the stems and flower buds can also be infected. Cause: Long-term exposure to low temperature and a humid environment. Control methods: Keep the plants as dry as possible, preferably using drip irrigation for fertilizer and water control; maintain good ventilation; spray 75% chlorothalonil at 500 times dilution, or carbendazim at 500 times dilution, alternating them, spraying once every 7 to 10 days; in the evening, a 10% procymidone
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What to Do When Alligator Snapping Turtles Kill Each Other? Five Methods to Help You Prevent It Effectively
Alligator snapping turtles are native to North America and Central America. They are physically strong and highly aggressive, making them a relatively unique species among turtles. Alligator snapping turtles are famous for their high reproduction rate, fast growth, large meat yield, and delicious meat, and are now favored by many farmers. They have been promoted for breeding in many regions, with considerable economic benefits. However, in high-density artificial breeding, due to their nature as well as environmental, feed, and mating factors, alligator snapping turtles kill each other, resulting in a low survival rate. To solve this problem, Zhejiang Province
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Proper removal of silkworm excrement can effectively reduce the occurrence of silkworm diseases
Silkworm excrement not only harbors the pathogens of viral flacherie, but is also a breeding and transmission site for the pathogens of many silkworm diseases such as empty-head soft rot, bacterial soft rot, and muscardine. Data show that when pathogen-carrying silkworm excrement from spring-reared silkworms is left for 15 days and then comes into contact with mulberry leaves, it can cause the incidence of midgut-type viral flacherie in silkworms that eat those leaves to reach 75%; when pathogen-carrying silkworm excrement from late-autumn-reared silkworms is left for 1 day and then comes into contact with mulberry leaves, it can cause the incidence of midgut-type viral flacherie in silkworms that eat those leaves to reach 60%, and after 7 days the incidence reaches 100%. Therefore, during routine rearing,
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Electric shocks to live fish can effectively extend transport time
Fisheries experts have found that giving live fish electric shocks to induce a state of suspended animation can extend storage and transport time. The method is to apply a voltage of 5000 volts to each kilogram of live fish such as sea bream for 30 seconds, then let them breathe oxygen for 5 minutes. In this way, the fish carry out the minimal breathing necessary to sustain life and enter a state of suspended animation. Fish in this state of suspended animation consume almost no oxygen and can be stored and transported at a ratio of "half fish, half water," which not only greatly saves on transport costs,
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Scientific use of chemical control technology in cotton can effectively increase yield
Scientific chemical control of cotton is an important scientific measure for increasing cotton yield. Chemical regulation technology has three benefits: first, it helps strong seedlings to develop early, controls height and stabilizes growth, making it easier to give play to the yield-increasing advantage; second, it simplifies cotton field management, saving labor and cost; third, it promotes the transformation of second- and third-grade cotton seedlings, achieving balanced development and increasing yield and efficiency. The principle of chemical control is "small amounts, many times; light control, frequent adjustment." One should master "spray every time, control every time" or "control once at every interval" (flexibly according to soil fertility, rainfall, and growth condition), and it is best to "divide the amount for one application into three applications," ensuring the plant grows steadily and robustly "strong but not excessive" from beginning to end. If chemical control is done poorly, it can cause excessive growth or stiff seedlings that do not develop, affecting the normal growth of cotton. Therefore, in the process of implementing chemical control, the dosage of the chemical control agent must be strictly controlled.
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