Does Ceylon black tea come from Sri Lanka? What are the famous tea garden brands in Sri Lanka? The development of Ceylon tea garden is affected by fungal diseases.

Managers of Sri Lanka commercial tea plantations welcomed the government's decision to allow nitrogen imports, but said the rubber and spice industries had also been hit hard by the ban on agrochemicals. Commercial tea plantations have so far been using some fertilizer imported from China because of rising prices, but they warn that yields will fall sharply once the current rainy season ends. Roshan Rajadurai, representing farm managers at the Farmers Association, said: "We applaud the pragmatic decision taken by the government at the final stage, which provides a much-needed boost to tea producers who are dealing with many challenges, including rising production costs and continued disruptions caused by the epidemic." "Sustainable solutions in fertilizer will help the tea industry contribute to the economy and earn much-needed foreign exchange for the country." Sri Lanka banned fertilizer imports as the country's central bank printed money to keep interest rates low and pay civil servants, triggering a foreign exchange shortage. Officials from the Sri Lanka Government Medical Officers Association, an important policy advocacy association, also say agricultural chemicals are causing noncommunicable diseases. According to the Roman writer Pliny the Elder, ancient Sri Lanka people lived for 140 years without chemicals. Sri Lanka's government issues executive orders through gazettes aimed at saving foreign exchange and stopping the spread of non-communicable diseases, but analysts warn that the lack of evidence-based coercive policies will backfire. According to the Palestinian Authority, another export crop was severely affected following the ban on tea and rubber on 21 May. The PA said: "The solution for rubber fertilizer has not yet been announced, which also brings considerable foreign exchange earnings to the country." "The rubber industry in particular has been ravaged by an extremely serious fungal disease, Pestalotiopsis, which has reached epidemic proportions and destroyed coffee plantations in Sri Lanka in the late 19th century. "In addition to ensuring that the planting sector is able to maintain optimal plant nutrient levels, the industry is waiting for further clarity on the use of other important inputs to control weeds and pests."

Fungal diseases require fungicides and extra fertilizer to help trees regrow defoliation. Sri Lanka has plans to import organic fertilizer from China and other countries after warnings that municipal or other waste from countries with industrial production may contain heavy metals, other residues and pests. Sri Lanka tea is exported as a food product that meets global and national safety standards, particularly as some countries only allow classification of the safest phytonutrients, pesticides and herbicides according to known science. Based on known science, acceptable levels of chemical residues have been established by global and national health regulators. The tea industry says there is no evidence that phytonutrients used in tea cultivation are harmful to health and the environment, and the Tea Institute approves them after rigorous testing. "More than 95 percent of Sri Lanka tea exports are inspected by buyers who meet very high standards, including buyers in regions such as Europe," PA said. "These tests ensure that chemical residues, if any, are negligible and insignificant for human consumption, as failure to meet these standards can lead buyers to reject orders."