During the dormant period (November to March of the following year), it's essential to take proactive steps to manage pests and diseases that may overwinter on jujube trees. First, after the leaves have fallen, clear the area around the tree by removing weeds, scraping bark, pruning dead branches, and burning any debris. This helps eliminate overwintering pests such as leafhoppers, jujube tapeworms, beetles, green thorn moths, and jujube nymphs, as well as diseases like date rust, jujube anthracnose, and leaf spot.
Next, paint the trunk with a white wash to protect it from temperature fluctuations and pests. The mixture should include 3-5 parts lime sulfur stock solution, 1 part salt, 10 parts quicklime, and 30 parts water. Apply this before winter sets in and again in March. While painting, also brush off any shell insects like "Zi Zizi" that may be present on the trunk.
Before the winter season, deeply till the soil around the tree to remove pests like the jujube fruit borer, peach borer, and others that may be hiding in the ground. In late November and early March, spray the entire tree with a 5-degree lime sulfur solution to control dry rot, leafhoppers, scale insects, and other pests.
In mid-March, wrap a 6-10 cm wide plastic tape around the lower trunk and roll it upward to prevent jujube budworms from climbing up. Attach a cypermethrin ring around the trunk, replacing it every half month to effectively kill any pests that may be moving up the tree.
During the budding period in April, begin by spraying 0.3-0.5 degree lime sulfur to control red spider mites and turtle wax. Use black light traps to attract and kill adult Mythimna separata. In mid to late April, apply either 5% chlorpyrifos EC at 1000 times dilution or 50% malathion EC at 1000 times to control jujube budworms, starry sky moth, and other pests.
By late April, sprinkle phoxim particles within 1 meter of the tree trunk to target emerging pests and jujube buds.
In mid-May, spray a mixture of 2000 times diluted urea No. 3 and 200-300 times diluted Caltex enemy emulsifiable concentrate to manage pests like the gypsy moth, red spider, and turtle wax moth. Repeat the application every 10 days for best results.
During the pre-flowering stage in late May, use a 2000 times diluted dead net solution combined with 10% nicotine emulsifiable concentrate to control wallworms, red spider mites, and armyworms. After rain, scatter phoxim particles near the tree base to target underground pests like the peach borer. Spray a 1:2:200 Bordeaux mixture and burn any wilted shoots to eliminate larvae of the moth caterpillar.
In June, during the flowering period, manually collect beetles, macular mites, and jujube budworms. Spray a mixture of 50% moth alfalfa at 1500 times dilution plus 600 grams per hectare to control pests like the peach borer, armyworm, and various fungal diseases.
During the young fruit stage in July, use black light traps to capture adult moths. Spray 30% Peach Xiaoling at 2000 times and 25% Purobilene at 2000 times to manage Prunus persicae and nymphs. Mid-July is a good time to spray 5% anti-Taibao EC at 1000 times or 40% Fuxing EC at 6000 times to control bollworms, rust, and other diseases. In late July, use Green Depot at 400 times mixed with 50% phoxim EC to manage rust, leaf spot, and other issues.
During the fruit enlargement phase in August, start with a 1:2:200 Bordeaux mixture. Combine fungicides with streptomycin (100-140 units) when spraying. In mid-August, apply Polyana or polyoxorubicin to prevent early defoliation and fruit diseases.
In September, during the fruit coloring stage, spray carbendazim at 600 times, 140 units of agricultural streptomycin, and 50% xin urea EC at 1500 times to treat rust, anthracnose, and other diseases. Mid-September involves tying grass around the trunk and major branches to collect and burn jujube armyworms, flowerworms, and red spiders. In late September, spray 68.5% polyoxorubicin at 1000 times or M-45 at 800 times to prevent anthracnose and defoliation.
Finally, during the fruit ripening period in October, after harvest, spray the tree with 600 times carbendazim or 800 times thiophanate methyl. Collect and destroy any remaining pests and diseased fruits to reduce future infestations.
Canned Tuna,Fresh Canned Tuna,Frozen Canned Tuna,Canned Skipjack Chunk
ZHEJIANG RETRONX FOODSTUFF INDUSTRY CO.,LTD , https://www.retronxfoods.com