標題: [生活小百科] Early Blight and Septoria Leaf Spot on Tomato Plants [打印本頁] 作者: 6t6t 時間: 2019-4-13 05:03 PM 標題: Early Blight and Septoria Leaf Spot on Tomato Plants
Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but - c) a- C' s) ]/ {6 ~
1 Q9 C( o; L8 s) B% d7 z* `/ ^tvb now,tvbnow,bttvbcan start at any time. Infections can occur anywhere and are most severe in wet and humid areas.公仔箱論壇* ^0 B5 A- M1 p: W: `/ t
tvb now,tvbnow,bttvb2 I6 ^% Z" w j5 _" Y) j# y
' Z, C+ L6 h) _$ d1 [How to identify Early Blight( u& Q% u: y, R$ t" X C% e
公仔箱論壇4 @1 x/ b% w# q2 L7 U' w9 S
Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 2 h' Y+ ?" i6 S/ ~$ Z公仔箱論壇 7 t$ r% I/ ?# a1 [5.39.217.77:8898newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 7 e! H5 e4 A2 q7 y0 p9 d" n/ o
# Y5 [& o5 X2 }in color and form concentric rings, or a - U8 O% Q: H+ w9 w0 R' j4 ]6 o7 \5 J0 p% v\" A
bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, tvb now,tvbnow,bttvb; A6 G7 u. M: u7 E- f6 j& l
, U$ A/ g! y" D9 h* X5 E公仔箱論壇leaves may fall off. Extensive loss - Y G- F5 G5 C: b# @- S! i7 A8 z公仔箱論壇 5 W4 u; Q$ p; e" {" q- p& T7 n公仔箱論壇of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. $ q- C1 {% G" o$ D5.39.217.77:8898 : X" K1 Y: ?' V ! k' h- E1 P0 `7 q" L8 h, q" IHow to identify Septoria Leaf Spottvb now,tvbnow,bttvb/ q, I6 p0 q @6 A5 R
# q+ b. A! k' m \TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Symptoms of Septoria leaf spot also start # w: B6 [' T5 [) M4 i r' xTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。/ L3 F7 i; l0 C# \) R0 n
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 1 |% k& \: Y7 W) E0 f) m( D% X 9 t3 Q. e+ H) h3 w公仔箱論壇shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. tvb now,tvbnow,bttvb! w- D- h: F- J6 N: D
8 g9 k- f) _% Y2 M
Small dark spots, the fruiting bodies of the fungus5.39.217.77:8898# g+ h; N0 o6 K2 S* m/ I& t& e+ Y
\" `; F\" Z- b# z4 T( |( R+ L7 B公仔箱論壇, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 2 {7 u) T& |8 c1 ~& U& Y; L/ T! f' @公仔箱論壇 9 w; v: z3 G9 e& p+ G% Pand dead. Stems can also become infected but 9 [$ z' x6 ?! l0 F公仔箱論壇5.39.217.77:8898: U! B1 Q0 e9 ?5 D, I: w$ c8 K\" o
infection of fruit is rare.+ n- I0 m1 Q. s* o& j p* j' T- N
TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。* J) b0 `7 e. y* [4 P% R1 f
公仔箱論壇7 s- j. R5 Q* |$ B7 Q1 {
How to Prevent and Control Early Blight and % w% m4 F8 S7 k$ X+ S' v/ U 1 O. b8 Q4 a+ `% t公仔箱論壇Septoria Leaf Spot x/ f' t/ k0 \" o3 T2 S0 y5 S7 t6 z5.39.217.77:8898 U) {- v1 e6 F8 t
Follow the 12 easy steps below to enjoy a / I* c+ M5 @# e' P! D1 m0 D\" Ltvb now,tvbnow,bttvb, H4 ~; ~: v1 @# V3 i1 I
long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes. " o3 i; W" t' i2 Z. i" O$ \ # E* f+ C6 q' A7 G% _% G/ ]tvb now,tvbnow,bttvbWeed your garden. Some weeds, " M( B2 Z$ D U% r$ M- } jTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。tvb now,tvbnow,bttvb# b; P+ k2 ?( S
like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. 6 g! g% E$ }3 u公仔箱論壇 8 C2 O$ {" m# ?1 j% T3 Z w. A8 O, v5 Wtvb now,tvbnow,bttvbRotate crop locations. Don’t ( Q1 g m: ?5 e' u6 Jtvb now,tvbnow,bttvbtvb now,tvbnow,bttvb2 E$ S0 K9 Z! m* t! D3 k
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas & }2 v: C, J3 N公仔箱論壇" c1 f+ D9 U$ Z1 d$ B5 F. G
where tomatoes were grown. / m* }6 K0 H& C* [3 N5.39.217.77:88985.39.217.77:8898% i5 J6 r2 \: ?8 G9 i% \& v! A
Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. $ A/ K- a% V, }* u |7 y: |TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 8 D/ {( a6 {: c8 g+ m/ x
TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。& [) ~3 ]+ e. J( {, |+ s
fungus from the soil to your & b8 m% b! B$ d) M* K5 C: V公仔箱論壇 + t% u% h8 x5 z5 j' z0 C- a5.39.217.77:8898plants. & J7 F, Y) ^& ]6 E( _! e3 ] 1 S1 b+ n. [ S' \公仔箱論壇Stake or cage plants to keep them TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。- G* [9 L) G0 _6 E1 }+ M! {
4 z2 K3 M. H1 u* I! s& `off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。5 ]( h' t3 |1 x* B
' a7 m8 b/ I; I! z' Acages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of tvb now,tvbnow,bttvb8 n9 \0 }( M R) A- c- ?9 B
, `) r) N9 i, X9 c; A8 B公仔箱論壇space above the soil without any leaves. Do not use : L\" p\" b' y8 x. A2 T
$ B7 S) @- v5 I0 O\" d$ `; mtvb now,tvbnow,bttvboverhead watering. & A' k8 `! T- O1 E _Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。/ o. z; a* D7 T; L/ n" L% L
Consider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow 5.39.217.77:88985 r: S( s5 K5 P0 T
% G* i+ e% R1 @% o. e, C# t/ p
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 4 v1 j6 C; e; V$ z5 ]
5.39.217.77:88989 Y4 D( M5 p4 `( m
wet. Keep your plants happy and healthy. Weak and stressed 2 b( d6 C- M0 X7 M. H! ^5 R公仔箱論壇 5 q3 n. m- @7 s# Pplants are more susceptible to disease. 0 k7 S- {4 a- p9 k 7 ?! ~1 Z# c6 h1 Z, yRemove and destroy or throw away diseased leaves, both off the 8 k# ^& q. M\" p7 X4 U0 _+ i ) ^ }1 y4 a) V0 [% T5.39.217.77:8898plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。8 }/ H8 j5 H4 B7 A+ ~8 g2 h3 k
) g& ]6 ?. K# T5 f1 D. VTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Late Blight on Tomato Plants 2 E9 i! n( J8 |0 J2 U2 m $ [) H( t# a2 m# k; u4 F. eLate blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 5.39.217.77:88988 F$ R0 y' {7 n+ C
% o% b9 [' x. j/ q% ^ plants in a garden. Once a tomato plant 7 L5 A/ C7 B4 I. Y9 O; W5.39.217.77:8898 5 C8 ]* N7 h: y8 a5 t2 g6 r$ ntvb now,tvbnow,bttvbis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 3 N: w8 A; r6 Q2 V O+ a0 P; uTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。( |6 D. m y! S+ m: ?: u
water-soaked spots on leaves and stems that grow and turn dark brown or gray. A white downy growth may develop on the underside of infected leaves. Late blight 0 T! G: z$ o$ j. J Q8 _( p0 [# Ntvb now,tvbnow,bttvb can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and . l: E2 |. _. F: |tvb now,tvbnow,bttvb公仔箱論壇5 q1 X6 j' R& Z: [0 @+ Q, N
Septoria leaf spot infections will also help prevent late blight infections.
